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<?php |
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/** |
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* Our handler for database sessions |
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* |
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* @name ElkArte Forum |
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* @copyright ElkArte Forum contributors |
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* @license BSD http://opensource.org/licenses/BSD-3-Clause |
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* |
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* This file contains code covered by: |
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* copyright: 2011 Simple Machines (http://www.simplemachines.org) |
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* license: BSD, See included LICENSE.TXT for terms and conditions. |
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* |
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* @version 1.1 Release Candidate 1 |
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* |
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*/ |
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namespace ElkArte\sources\subs\SessionHandler; |
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/** |
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* Class DatabaseHandler |
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* |
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* @package ElkArte\sources\subs\SessionHandler |
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*/ |
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class DatabaseHandler extends SessionHandler |
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{ |
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/** |
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* {@inheritdoc} |
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*/ |
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1 |
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public function destroy($sessionId) |
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{ |
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// Better safe than sorry |
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if (preg_match('~^[A-Za-z0-9,-]{16,64}$~', $sessionId) == 0) |
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{ |
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return false; |
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} |
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// Just delete the row... |
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$this->_db->query('', ' |
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DELETE FROM {db_prefix}sessions |
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WHERE session_id = {string:session_id}', |
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array( |
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'session_id' => $sessionId, |
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) |
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); |
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return true; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function gc($maxLifetime) |
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{ |
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// Just set to the default or lower? Ignore it for a higher value. (hopefully) |
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if (!empty($this->_modSettings['databaseSession_lifetime']) && ($maxLifetime <= 1440 || $this->_modSettings['databaseSession_lifetime'] > $maxLifetime)) |
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{ |
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$maxLifetime = max($this->_modSettings['databaseSession_lifetime'], 60); |
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} |
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// Clean up after yerself ;). |
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$this->_db->query('', ' |
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DELETE FROM {db_prefix}sessions |
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WHERE last_update < {int:last_update}', |
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array( |
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'last_update' => time() - $maxLifetime, |
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) |
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); |
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return $this->_db->affected_rows() != 0; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function read($sessionId) |
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{ |
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if (preg_match('~^[A-Za-z0-9,-]{16,64}$~', $sessionId) == 0) |
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1 |
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{ |
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return ''; |
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} |
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// Look for it in the database. |
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$result = $this->_db->query('', ' |
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SELECT data |
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FROM {db_prefix}sessions |
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WHERE session_id = {string:session_id} |
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LIMIT 1', |
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array( |
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'session_id' => $sessionId, |
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) |
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); |
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list ($sessionData) = $this->_db->fetch_row($result); |
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$this->_db->free_result($result); |
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return empty($sessionData) ? '' : $sessionData; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function write($sessionId, $data) |
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{ |
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if (preg_match('~^[A-Za-z0-9,-]{16,64}$~', $sessionId) == 0) |
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{ |
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return false; |
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} |
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// First try to update an existing row... |
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$this->_db->query('', ' |
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UPDATE {db_prefix}sessions |
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SET data = {string:data}, last_update = {int:last_update} |
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WHERE session_id = {string:session_id}', |
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array( |
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'last_update' => time(), |
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'data' => $data, |
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'session_id' => $sessionId, |
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) |
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); |
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// If that didn't work, try inserting a new one. |
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if ($this->_db->affected_rows() == 0) |
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{ |
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$this->_db->insert('ignore', |
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'{db_prefix}sessions', |
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array('session_id' => 'string', 'data' => 'string', 'last_update' => 'int'), |
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array($sessionId, $data, time()), |
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array('session_id') |
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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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elkarte /
Elkarte
