* SPDX-License-Identifier: AGPL-3.0-only ************************************/ /* crmv@181231 */ /** * Save session data in DB */ class DBSessionHandler implements SessionHandlerInterface { protected $lifetime; protected $table = ''; public function __construct($params = array()) { global $adb, $table_prefix; $this->table = $table_prefix.'_sessions'; if (!$adb || !$adb->database->IsConnected()) { throw new Exception('DB connection failed'); } // TODO: don't check every time! if(!Vtecrm_Utils::CheckTable($this->table)) { $schema = ' ENGINE=InnoDB ts '; $schema_obj = new adoSchema($adb->database); $schema_obj->ExecuteSchema($schema_obj->ParseSchemaString($schema)); } if (isset($params['lifetime'])) { $this->lifetime = $params['lifetime']; } else { $this->lifetime = ini_get('session.gc_maxlifetime'); } } public function open($savePath, $sessionName) { return true; } public function close() { return true; } public function read($id) { global $adb; $res = $adb->pquery("SELECT data FROM {$this->table} WHERE sid = ?", array($id)); if ($res && $adb->num_rows($res) > 0) { return $adb->query_result_no_html($res, 0, 'data'); } return ''; } public function write($id, $data) { global $adb; $ts = time(); if ($adb->isMysql()) { $res = $adb->pquery( "INSERT INTO {$this->table} (sid, ts, data) VALUES (?,?,?) ON DUPLICATE KEY UPDATE data=?, ts = ?", array($id, $ts, $data, $data, $ts) ); } else { // untested code!! $res = $adb->pquery( "UPDATE {$this->table} SET data=?, ts = ? WHERE sid = ?", array($data, $ts, $id) ); if ($res && $adb->getAffectedRowCount($res) == 0) { $res = $adb->pquery( "INSERT INTO {$this->table} (sid, ts, data) VALUES (?,?,?)", array($id, $ts, $data) ); } } return !!$res; } public function destroy($id) { global $adb; $res = $adb->pquery("DELETE FROM {$this->table} WHERE sid = ?", array($id)); return !!$res; } public function gc($maxlifetime) { global $adb; $oldts = time()-$maxlifetime; $res = $adb->pquery("DELETE FROM {$this->table} WHERE ts < = ?", array($oldts)); return !!$res; } }