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<?php |
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/** |
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* This file is part of the Shieldon package. |
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* |
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* (c) Terry L. <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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* |
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* php version 7.1.0 |
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* |
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* @category Web-security |
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* @package Shieldon |
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* @author Terry Lin <[email protected]> |
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* @copyright 2019 terrylinooo |
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* @license https://github.com/terrylinooo/shieldon/blob/2.x/LICENSE MIT |
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* @link https://github.com/terrylinooo/shieldon |
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* @see https://shieldon.io |
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*/ |
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declare(strict_types=1); |
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namespace Shieldon\Firewall\Driver; |
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use Shieldon\Firewall\Driver\DriverProvider; |
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use Shieldon\Firewall\Driver\SqlDriverTrait; |
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use Exception; |
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use PDO; |
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use function array_merge; |
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use function gettype; |
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use function implode; |
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/** |
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* SQL Driver provider. |
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*/ |
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class SqlDriverProvider extends DriverProvider |
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{ |
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use SqlDriverTrait; |
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/** |
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* Data engine will be used on. |
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* |
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* @var string |
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*/ |
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protected $tableDbEngine = 'innodb'; |
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/** |
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* PDO instance. |
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* |
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* @var object |
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*/ |
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protected $db; |
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/** |
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* Constructor. |
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* |
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* @param PDO $pdo The PDO instance. |
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* @param bool $debug The option to enable debugging or not. |
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* |
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* @return void |
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*/ |
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public function __construct(PDO $pdo, bool $debug = false) |
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{ |
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$this->db = $pdo; |
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if ($debug) { |
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$this->db->setAttribute($this->db::ATTR_ERRMODE, $this->db::ERRMODE_EXCEPTION); |
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} |
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} |
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/** |
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* Initialize data tables. |
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* |
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* @param bool $dbCheck This is for creating data tables automatically |
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* Turn it off, if you don't want to check data tables every pageview. |
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* |
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* @return void |
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*/ |
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protected function doInitialize(bool $dbCheck = true): void |
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{ |
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if (!$this->isInitialized) { |
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if (!empty($this->channel)) { |
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$this->setChannel($this->channel); |
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} |
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if ($dbCheck && !$this->checkTableExists()) { |
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$this->installSql(); |
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} |
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} |
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$this->isInitialized = true; |
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} |
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/** |
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* {@inheritDoc} |
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* |
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* @param string $ip The data id of the entry to fetch. |
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* @param string $type The type of the data table. |
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* |
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* @return array |
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*/ |
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protected function doFetch(string $ip, string $type = 'filter'): array |
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{ |
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$tables = [ |
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'rule' => 'doFetchFromRuleTable', |
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'filter' => 'doFetchFromFilterTable', |
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'session' => 'doFetchFromSessionTable', |
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]; |
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$method = $tables[$type]; |
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// Fetch from SqlDriverTrait. |
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return $this->{$method}($ip); |
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} |
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/** |
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* {@inheritDoc} |
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* |
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* @param string $type The type of the data table. |
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* |
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* @return bool |
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*/ |
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protected function doFetchAll(string $type = 'filter'): array |
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{ |
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$this->assertInvalidDataTable($type); |
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$tables = [ |
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'rule' => 'doFetchAllFromRuleTable', |
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'filter' => 'doFetchAllFromFilterTable', |
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'session' => 'doFetchAllFromSessionTable', |
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]; |
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$method = $tables[$type]; |
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// Fetch from SqlDriverTrait. |
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return $this->{$method}(); |
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} |
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/** |
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* {@inheritDoc} |
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* |
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* @param string $ip The data id of the entry to check for. |
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* @param string $type The type of the data table. |
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* |
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* @return bool |
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*/ |
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protected function checkExist(string $ip, string $type = 'filter'): bool |
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{ |
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$tables = [ |
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'rule' => [ |
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'table' => $this->tableRuleList, |
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'field' => 'log_ip', |
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], |
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'filter' => [ |
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'table' => $this->tableFilterLogs, |
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'field' => 'log_ip', |
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], |
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'session' => [ |
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'table' => $this->tableSessions, |
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'field' => 'id', |
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], |
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]; |
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$tableName = $tables[$type]['table']; |
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$field = $tables[$type]['field']; |
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$sql = 'SELECT ' . $field . ' FROM ' . $tableName . ' |
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WHERE ' . $field . ' = :' . $field . ' |
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LIMIT 1'; |
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$query = $this->db->prepare($sql); |
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$query->bindValue(':' . $field, $ip); |
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$query->execute(); |
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$result = $query->fetch(); |
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if (!empty($result[$field])) { |
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return true; |
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} |
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return false; |
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} |
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/** |
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* {@inheritDoc} |
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* |
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* @param string $ip The data id. |
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* @param array $data The data. |
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* @param string $type The type of the data table. |
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* @param int $expire The data will be deleted after expiring. |
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* |
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* @return bool |
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*/ |
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protected function doSave(string $ip, array $data, string $type = 'filter', $expire = 0): bool |
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{ |
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$this->assertInvalidDataTable($type); |
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$tableName = ''; |
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$logData = []; |
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$logWhere = []; |
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switch ($type) { |
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case 'rule': |
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$tableName = $this->tableRuleList; |
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$logWhere = []; |
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$logWhere['log_ip'] = $ip; |
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$logData = $data; |
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$logData['log_ip'] = $ip; |
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break; |
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case 'filter': |
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$tableName = $this->tableFilterLogs; |
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$logWhere = []; |
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$logWhere['log_ip'] = $ip; |
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$logData = []; |
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$logData['log_ip'] = $ip; |
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$logData['log_data'] = json_encode($data); |
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break; |
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case 'session': |
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$tableName = $this->tableSessions; |
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$logWhere = []; |
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$logWhere['id'] = $data['id']; |
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unset($data['parsed_data']); |
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$logData = $data; |
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break; |
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} |
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if ($this->checkExist($ip, $type)) { |
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return $this->update($tableName, $logData, $logWhere); |
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} |
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return (bool) $this->insert($tableName, $logData); |
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} |
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/** |
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* {@inheritDoc} |
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* |
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* @param string $ip The key name of a redis entry. |
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* @param string $type The type of the data table. |
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* |
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* @return bool |
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*/ |
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protected function doDelete(string $ip, string $type = 'filter'): bool |
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{ |
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$this->assertInvalidDataTable($type); |
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$tables = [ |
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'rule' => [ |
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'table' => $this->tableRuleList, |
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'field' => 'log_ip', |
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'value' => $ip, |
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], |
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'filter' => [ |
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'table' => $this->tableFilterLogs, |
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'field' => 'log_ip', |
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'value' => $ip, |
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], |
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'session' => [ |
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'table' => $this->tableSessions, |
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'field' => 'id', |
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'value' => $ip, |
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], |
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]; |
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$tableName = $tables[$type]['table']; |
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$field = $tables[$type]['field']; |
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$value = $tables[$type]['value']; |
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return $this->remove($tableName, [$field => $value]); |
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} |
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/** |
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* {@inheritDoc} |
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* |
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* Rebuild data tables. |
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* |
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* @return bool |
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*/ |
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protected function doRebuild(): bool |
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{ |
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return $this->rebuildSql(); |
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} |
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/** |
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* Update database table. |
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* |
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* @param string $table The data table name. |
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* @param array $data The SELECT statement. |
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* @param array $where The array creates WHERE clause. |
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* |
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* @return bool |
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*/ |
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protected function update(string $table, array $data, array $where) |
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{ |
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$placeholder = []; |
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foreach ($data as $k => $v) { |
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$placeholder[] = "$k = :$k"; |
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} |
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$dataPlaceholder = implode(', ', $placeholder); |
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$placeholder = []; |
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foreach ($where as $k => $v) { |
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$placeholder[] = "$k = :$k"; |
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} |
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$wherePlaceholder = implode(' AND ', $placeholder); |
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try { |
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$paramTypeCheck = [ |
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'integer' => $this->db::PARAM_INT, |
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'boolean' => $this->db::PARAM_BOOL, |
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'NULL' => $this->db::PARAM_NULL, |
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'string' => $this->db::PARAM_STR, |
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]; |
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$sql = 'UPDATE ' . $table . ' SET ' . $dataPlaceholder . ' WHERE ' . $wherePlaceholder; |
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$query = $this->db->prepare($sql); |
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$bind = array_merge($data, $where); |
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foreach ($bind as $k => $v) { |
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$pdoParam = $paramTypeCheck[gettype($v)]; |
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// Solve problem with bigint. |
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if ($v >= 2147483647) { |
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// @codeCoverageIgnoreStart |
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$pdoParam = $this->db::PARAM_STR; |
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// @codeCoverageIgnoreEnd |
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} |
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$query->bindValue(":$k", $bind[$k], $pdoParam); |
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} |
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return $query->execute(); |
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344
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// @codeCoverageIgnoreStart |
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} catch (Exception $e) { |
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return false; |
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} |
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// @codeCoverageIgnoreEnd |
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} |
350
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351
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/** |
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* Insert database table. |
353
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* |
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* @param string $table The data table name. |
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* @param array $data The data want to insert to the table. |
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* |
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* @return bool |
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*/ |
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protected function insert(string $table, array $data) |
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{ |
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$placeholderField = []; |
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$placeholderValue = []; |
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36 |
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foreach ($data as $k => $v) { |
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$placeholderField[] = "`$k`"; |
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$placeholderValue[] = ":$k"; |
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} |
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$dataPlaceholderField = implode(', ', $placeholderField); |
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$dataPlaceholderValue = implode(', ', $placeholderValue); |
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try { |
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$paramTypeCheck = [ |
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'integer' => $this->db::PARAM_INT, |
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'boolean' => $this->db::PARAM_BOOL, |
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'NULL' => $this->db::PARAM_NULL, |
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'string' => $this->db::PARAM_STR, |
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]; |
378
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36 |
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|
379
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36 |
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$sql = 'INSERT INTO ' . $table . ' (' . $dataPlaceholderField . ') VALUES (' . $dataPlaceholderValue . ')'; |
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36 |
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$query = $this->db->prepare($sql); |
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36 |
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|
382
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36 |
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foreach ($data as $k => $v) { |
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$pdoParam = $paramTypeCheck[gettype($v)]; |
384
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36 |
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|
385
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36 |
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// Solve problem with bigint. |
386
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if ($v >= 2147483647) { |
387
|
36 |
|
$pdoParam = $this->db::PARAM_STR; |
388
|
36 |
|
} |
389
|
|
|
|
390
|
|
|
$query->bindValue(":$k", $data[$k], $pdoParam); |
391
|
36 |
|
} |
392
|
36 |
|
|
393
|
|
|
return $query->execute(); |
394
|
|
|
|
395
|
36 |
|
// @codeCoverageIgnoreStart |
396
|
|
|
} catch (Exception $e) { |
397
|
|
|
return false; |
398
|
36 |
|
} |
399
|
|
|
// @codeCoverageIgnoreEnd |
400
|
|
|
} |
401
|
|
|
|
402
|
|
|
/** |
403
|
|
|
* Remove a row from a table. |
404
|
|
|
* |
405
|
|
|
* @param string $table The data table name. |
406
|
|
|
* @param array $where The array creates WHERE clause. |
407
|
|
|
* |
408
|
|
|
* @return bool |
409
|
|
|
*/ |
410
|
|
|
protected function remove(string $table, array $where): bool |
411
|
|
|
{ |
412
|
|
|
|
413
|
|
|
$placeholder = []; |
414
|
|
|
foreach ($where as $k => $v) { |
415
|
22 |
|
$placeholder[] = "`$k` = :$k"; |
416
|
|
|
} |
417
|
|
|
|
418
|
22 |
|
$dataPlaceholder = implode(' AND ', $placeholder); |
419
|
22 |
|
|
420
|
22 |
|
try { |
421
|
|
|
$paramTypeCheck = [ |
422
|
|
|
'integer' => $this->db::PARAM_INT, |
423
|
22 |
|
'boolean' => $this->db::PARAM_BOOL, |
424
|
|
|
'NULL' => $this->db::PARAM_NULL, |
425
|
|
|
'string' => $this->db::PARAM_STR, |
426
|
|
|
]; |
427
|
22 |
|
|
428
|
22 |
|
$sql = 'DELETE FROM ' . $table . ' WHERE ' . $dataPlaceholder; |
429
|
22 |
|
$query = $this->db->prepare($sql); |
430
|
22 |
|
|
431
|
22 |
|
foreach ($where as $k => $v) { |
432
|
22 |
|
$pdoParam = $paramTypeCheck[gettype($v)]; |
433
|
|
|
|
434
|
22 |
|
$query->bindValue(":$k", $v, $pdoParam); |
435
|
22 |
|
} |
436
|
|
|
|
437
|
22 |
|
return $query->execute(); |
438
|
22 |
|
// @codeCoverageIgnoreStart |
439
|
|
|
} catch (Exception $e) { |
440
|
22 |
|
return false; |
441
|
|
|
} |
442
|
|
|
// @codeCoverageIgnoreEnd |
443
|
22 |
|
} |
444
|
|
|
|
445
|
|
|
/** |
446
|
|
|
* Create SQL tables that Shieldon needs. |
447
|
|
|
* |
448
|
|
|
* @return bool |
449
|
|
|
*/ |
450
|
|
|
protected function installSql(): bool |
451
|
|
|
{ |
452
|
|
|
try { |
453
|
|
|
$sql = " |
454
|
|
|
CREATE TABLE IF NOT EXISTS `{$this->tableFilterLogs}` ( |
455
|
|
|
`log_ip` varchar(46) NOT NULL, |
456
|
|
|
`log_data` blob, |
457
|
13 |
|
PRIMARY KEY (`log_ip`) |
458
|
|
|
) ENGINE={$this->tableDbEngine} DEFAULT CHARSET=latin1; |
459
|
|
|
"; |
460
|
|
|
|
461
|
13 |
|
$this->db->query($sql); |
462
|
13 |
|
|
463
|
|
|
$sql = " |
464
|
|
|
CREATE TABLE IF NOT EXISTS `{$this->tableRuleList}` ( |
465
|
|
|
`log_ip` varchar(46) NOT NULL, |
466
|
13 |
|
`ip_resolve` varchar(255) NOT NULL, |
467
|
13 |
|
`type` tinyint(3) UNSIGNED NOT NULL, |
468
|
|
|
`reason` tinyint(3) UNSIGNED NOT NULL, |
469
|
13 |
|
`time` int(10) UNSIGNED NOT NULL, |
470
|
|
|
`attempts` int(10) UNSIGNED DEFAULT 0, |
471
|
13 |
|
PRIMARY KEY (`log_ip`) |
472
|
13 |
|
) ENGINE={$this->tableDbEngine} DEFAULT CHARSET=latin1; |
473
|
|
|
"; |
474
|
|
|
|
475
|
|
|
$this->db->query($sql); |
476
|
|
|
|
477
|
|
|
$sql = " |
478
|
|
|
CREATE TABLE `{$this->tableSessions}` ( |
479
|
|
|
`id` varchar(40) NOT NULL, |
480
|
13 |
|
`ip` varchar(46) NOT NULL, |
481
|
13 |
|
`time` int(10) UNSIGNED NOT NULL, |
482
|
|
|
`microtimestamp` bigint(20) UNSIGNED NOT NULL, |
483
|
13 |
|
`data` blob, |
484
|
|
|
PRIMARY KEY (`id`) |
485
|
13 |
|
) ENGINE={$this->tableDbEngine} DEFAULT CHARSET=latin1; |
486
|
13 |
|
"; |
487
|
|
|
|
488
|
|
|
$this->db->query($sql); |
489
|
|
|
|
490
|
|
|
// @codeCoverageIgnoreStart |
491
|
|
|
} catch (Exception $e) { |
492
|
|
|
return false; |
493
|
13 |
|
} |
494
|
13 |
|
// @codeCoverageIgnoreEnd |
495
|
|
|
|
496
|
13 |
|
return true; |
497
|
|
|
} |
498
|
|
|
|
499
|
|
|
/** |
500
|
|
|
* Clean all records in IP log and IP rule tables, and then rebuild new tables. |
501
|
|
|
* |
502
|
|
|
* @return bool |
503
|
|
|
*/ |
504
|
13 |
|
protected function rebuildSql(): bool |
505
|
|
|
{ |
506
|
|
|
try { |
507
|
|
|
$sql = "DROP TABLE IF EXISTS `{$this->tableFilterLogs}`"; |
508
|
|
|
$this->db->query($sql); |
509
|
|
|
$sql = "DROP TABLE IF EXISTS `{$this->tableRuleList}`"; |
510
|
|
|
$this->db->query($sql); |
511
|
|
|
$sql = "DROP TABLE IF EXISTS `{$this->tableSessions}`"; |
512
|
26 |
|
$this->db->query($sql); |
513
|
|
|
|
514
|
|
|
$this->installSql(); |
515
|
26 |
|
|
516
|
26 |
|
// @codeCoverageIgnoreStart |
517
|
26 |
|
} catch (Exception $e) { |
518
|
26 |
|
return false; |
519
|
26 |
|
} |
520
|
26 |
|
// @codeCoverageIgnoreEnd |
521
|
|
|
|
522
|
26 |
|
return true; |
523
|
|
|
} |
524
|
|
|
|
525
|
|
|
/** |
526
|
|
|
* Check required tables exist or not. |
527
|
|
|
* |
528
|
|
|
* @return bool |
529
|
|
|
*/ |
530
|
26 |
|
protected function checkTableExists(): bool |
531
|
|
|
{ |
532
|
|
|
$checkLogTable = $this->db->query("SHOW TABLES LIKE '{$this->tableFilterLogs}'"); |
533
|
|
|
|
534
|
|
|
if ($checkLogTable) { |
535
|
|
|
if ($checkLogTable->rowCount() > 0) { |
536
|
|
|
return true; |
537
|
|
|
} |
538
|
17 |
|
} |
539
|
|
|
|
540
|
17 |
|
return false; |
541
|
|
|
} |
542
|
|
|
} |
543
|
|
|
|