56 lines
1.3 KiB
PHP
56 lines
1.3 KiB
PHP
<?php
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/**
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* This file is part of CodeIgniter 4 framework.
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*
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* (c) CodeIgniter Foundation <admin@codeigniter.com>
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*
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* For the full copyright and license information, please view
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* the LICENSE file that was distributed with this source code.
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*/
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namespace CodeIgniter\Session\Handlers\Database;
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use CodeIgniter\Session\Handlers\DatabaseHandler;
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/**
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* Session handler for MySQLi
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*
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* @see \CodeIgniter\Session\Handlers\Database\MySQLiHandlerTest
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*/
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class MySQLiHandler extends DatabaseHandler
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{
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/**
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* Lock the session.
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*/
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protected function lockSession(string $sessionID): bool
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{
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$arg = md5($sessionID . ($this->matchIP ? '_' . $this->ipAddress : ''));
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if ($this->db->query("SELECT GET_LOCK('{$arg}', 300) AS ci_session_lock")->getRow()->ci_session_lock) {
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$this->lock = $arg;
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return true;
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}
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return $this->fail();
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}
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/**
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* Releases the lock, if any.
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*/
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protected function releaseLock(): bool
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{
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if (! $this->lock) {
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return true;
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}
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if ($this->db->query("SELECT RELEASE_LOCK('{$this->lock}') AS ci_session_lock")->getRow()->ci_session_lock) {
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$this->lock = false;
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return true;
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}
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return $this->fail();
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}
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}
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