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<?php |
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namespace Lagdo\DbAdmin\Driver; |
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use Exception; |
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use Lagdo\DbAdmin\Driver\Db\ConnectionInterface; |
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use Lagdo\DbAdmin\Driver\Db\ServerInterface; |
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use Lagdo\DbAdmin\Driver\Db\DatabaseInterface; |
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use Lagdo\DbAdmin\Driver\Db\TableInterface; |
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use Lagdo\DbAdmin\Driver\Db\QueryInterface; |
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use Lagdo\DbAdmin\Driver\Db\GrammarInterface; |
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use Lagdo\DbAdmin\Driver\Entity\ConfigEntity; |
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use Lagdo\DbAdmin\Driver\Exception\AuthException; |
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use function is_object; |
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use function preg_match; |
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use function preg_replace; |
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use function substr; |
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use function strlen; |
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use function version_compare; |
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abstract class Driver implements DriverInterface |
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{ |
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use ErrorTrait; |
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use ConfigTrait; |
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use ConnectionTrait; |
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use ServerTrait; |
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use TableTrait; |
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use DatabaseTrait; |
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use QueryTrait; |
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use GrammarTrait; |
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/** |
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* @var UtilInterface |
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*/ |
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protected $util; |
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/** |
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* @var TranslatorInterface |
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*/ |
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protected $trans; |
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/** |
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* @var ServerInterface |
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*/ |
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protected $server; |
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/** |
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* @var DatabaseInterface |
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*/ |
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protected $database; |
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/** |
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* @var TableInterface |
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*/ |
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protected $table; |
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/** |
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* @var QueryInterface |
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*/ |
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protected $query; |
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/** |
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* @var GrammarInterface |
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*/ |
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protected $grammar; |
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/** |
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* @var ConnectionInterface |
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*/ |
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protected $connection; |
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/** |
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* @var ConnectionInterface |
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*/ |
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protected $mainConnection; |
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/** |
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* @var ConfigEntity |
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*/ |
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protected $config; |
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/** |
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* @var History |
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*/ |
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protected $history; |
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/** |
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* The constructor |
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* |
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* @param UtilInterface $util |
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* @param TranslatorInterface $trans |
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* @param array $options |
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*/ |
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public function __construct(UtilInterface $util, TranslatorInterface $trans, array $options) |
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{ |
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$this->util = $util; |
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$this->util->setDriver($this); |
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$this->trans = $trans; |
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$this->config = new ConfigEntity($options); |
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$this->history = new History($trans); |
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$this->initConfig(); |
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$this->createConnection(); |
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// Set the current connection as the main connection. |
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$this->mainConnection = $this->connection; |
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} |
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/** |
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* @param ConnectionInterface $connection |
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* |
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* @return Driver |
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*/ |
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public function useConnection(ConnectionInterface $connection) |
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{ |
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$this->connection = $connection; |
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return $this; |
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} |
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/** |
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* @return Driver |
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*/ |
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public function useMainConnection() |
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{ |
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$this->connection = $this->mainConnection; |
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return $this; |
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} |
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/** |
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* Set driver config |
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* |
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* @return void |
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*/ |
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abstract protected function initConfig(); |
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/** |
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* @inheritDoc |
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* @throws AuthException |
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*/ |
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public function connect(string $database, string $schema) |
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{ |
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if (!$this->connection->open($database, $schema)) { |
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throw new AuthException($this->error()); |
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} |
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$this->config->database = $database; |
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$this->config->schema = $schema; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function minVersion(string $version, string $mariaDb = '') |
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{ |
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$info = $this->connection->serverInfo(); |
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if ($mariaDb && preg_match('~([\d.]+)-MariaDB~', $info, $match)) { |
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$info = $match[1]; |
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$version = $mariaDb; |
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} |
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return (version_compare($info, $version) >= 0); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function charset() |
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{ |
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// SHOW CHARSET would require an extra query |
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return ($this->minVersion('5.5.3', 0) ? 'utf8mb4' : 'utf8'); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function begin() |
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{ |
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$result = $this->connection->query("BEGIN"); |
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return $result !== false; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function commit() |
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{ |
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$result = $this->connection->query("COMMIT"); |
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return $result !== false; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function rollback() |
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{ |
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$result = $this->connection->query("ROLLBACK"); |
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return $result !== false; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function setUtf8mb4(string $create) |
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{ |
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static $set = false; |
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// possible false positive |
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if (!$set && preg_match('~\butf8mb4~i', $create)) { |
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$set = true; |
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return 'SET NAMES ' . $this->charset() . ";\n\n"; |
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} |
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return ''; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function execute(string $query) |
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{ |
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$this->history->save($query); |
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return $this->connection->query($query); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function queries() |
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{ |
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return $this->history->queries(); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function applyQueries(string $query, array $tables, $escape = null) |
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{ |
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if (!$escape) { |
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$escape = function ($table) { |
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return $this->table($table); |
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}; |
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} |
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foreach ($tables as $table) { |
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if (!$this->execute("$query " . $escape($table))) { |
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return false; |
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} |
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} |
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return true; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function values(string $query, int $column = 0) |
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{ |
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$statement = $this->execute($query); |
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if (!is_object($statement)) { |
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return []; |
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} |
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$values = []; |
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while ($row = $statement->fetchRow()) { |
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$values[] = $row[$column]; |
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} |
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return $values; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function colValues(string $query, string $column) |
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{ |
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$statement = $this->execute($query); |
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if (!is_object($statement)) { |
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return []; |
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} |
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$values = []; |
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while ($row = $statement->fetchAssoc()) { |
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$values[] = $row[$column]; |
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} |
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return $values; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function keyValues(string $query, int $keyColumn = 0, int $valueColumn = 1) |
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{ |
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$statement = $this->execute($query); |
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if (!is_object($statement)) { |
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return []; |
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} |
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$values = []; |
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while ($row = $statement->fetchRow()) { |
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$values[$row[$keyColumn]] = $row[$valueColumn]; |
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} |
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return $values; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function rows(string $query) |
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{ |
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$statement = $this->execute($query); |
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if (!is_object($statement)) { // can return true |
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return []; |
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} |
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$rows = []; |
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while ($row = $statement->fetchAssoc()) { |
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$rows[] = $row; |
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} |
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return $rows; |
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} |
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/** |
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* Remove current user definer from SQL command |
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* |
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* @param string $query |
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* |
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* @return string |
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*/ |
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public function removeDefiner(string $query): string |
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{ |
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return preg_replace('~^([A-Z =]+) DEFINER=`' . |
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preg_replace('~@(.*)~', '`@`(%|\1)', $this->user()) . |
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'`~', '\1', $query); //! proper escaping of user |
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} |
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/** |
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* Query printed after execution in the message |
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* |
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* @param string $query Executed query |
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* |
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* @return string |
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*/ |
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private function queryToLog(string $query/*, string $time*/): string |
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{ |
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if (strlen($query) > 1e6) { |
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// [\x80-\xFF] - valid UTF-8, \n - can end by one-line comment |
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$query = preg_replace('~[\x80-\xFF]+$~', '', substr($query, 0, 1e6)) . "\n…"; |
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} |
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return $query; |
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} |
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/** |
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* Execute query |
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* |
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* @param string $query |
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* @param bool $execute |
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* @param bool $failed |
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* |
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* @return bool |
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* @throws Exception |
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*/ |
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public function executeQuery(string $query, bool $execute = true, |
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bool $failed = false/*, string $time = ''*/): bool |
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{ |
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if ($execute) { |
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// $start = microtime(true); |
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$failed = !$this->execute($query); |
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// $time = $this->trans->formatTime($start); |
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} |
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if ($failed) { |
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$sql = ''; |
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if ($query) { |
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$sql = $this->queryToLog($query/*, $time*/); |
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} |
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throw new Exception($this->error() . $sql); |
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} |
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return true; |
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} |
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/** |
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* Create SQL condition from parsed query string |
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* |
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* @param array $where Parsed query string |
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* @param array $fields |
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* |
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* @return string |
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*/ |
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public function where(array $where, array $fields = []): string |
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{ |
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$clauses = []; |
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$wheres = $where["where"] ?? []; |
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foreach ((array) $wheres as $key => $value) { |
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$key = $this->util->bracketEscape($key, 1); // 1 - back |
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$column = $this->util->escapeKey($key); |
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$clauses[] = $column . |
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// LIKE because of floats but slow with ints |
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($this->jush() == "sql" && is_numeric($value) && preg_match('~\.~', $value) ? " LIKE " . |
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$this->quote($value) : ($this->jush() == "mssql" ? " LIKE " . |
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$this->quote(preg_replace('~[_%[]~', '[\0]', $value)) : " = " . // LIKE because of text |
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$this->unconvertField($fields[$key], $this->quote($value)))); //! enum and set |
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if ($this->jush() == "sql" && |
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preg_match('~char|text~', $fields[$key]->type) && preg_match("~[^ -@]~", $value)) { |
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// not just [a-z] to catch non-ASCII characters |
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$clauses[] = "$column = " . $this->quote($value) . " COLLATE " . $this->charset() . "_bin"; |
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} |
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} |
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$nulls = $where["null"] ?? []; |
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foreach ((array) $nulls as $key) { |
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$clauses[] = $this->util->escapeKey($key) . " IS NULL"; |
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} |
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return implode(" AND ", $clauses); |
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} |
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} |
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