931 lines
29 KiB
PHP
931 lines
29 KiB
PHP
<?php
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/**
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* CodeIgniter
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*
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* An open source application development framework for PHP
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*
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* This content is released under the MIT License (MIT)
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*
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* Copyright (c) 2019 - 2022, CodeIgniter Foundation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* @package CodeIgniter
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* @author EllisLab Dev Team
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* @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
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* @copyright Copyright (c) 2014 - 2019, British Columbia Institute of Technology (https://bcit.ca/)
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* @copyright Copyright (c) 2019 - 2022, CodeIgniter Foundation (https://codeigniter.com/)
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* @license https://opensource.org/licenses/MIT MIT License
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* @link https://codeigniter.com
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* @since Version 2.0.0
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* @filesource
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*/
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defined('BASEPATH') or exit('No direct script access allowed');
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/**
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* CodeIgniter Session Class
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*
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* @package CodeIgniter
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* @subpackage Libraries
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* @category Sessions
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* @author Andrey Andreev
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* @link https://codeigniter.com/userguide3/libraries/sessions.html
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*/
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class CI_Session
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{
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/**
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* Userdata array
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*
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* Just a reference to $_SESSION, for BC purposes.
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*/
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public $userdata;
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protected $_driver = 'files';
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protected $_config;
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protected $_sid_regexp;
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// ------------------------------------------------------------------------
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/**
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* Class constructor
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*
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* @param array $params Configuration parameters
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* @return void
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*/
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public function __construct(array $params = array())
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{
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// No sessions under CLI
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if (is_cli()) {
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log_message('debug', 'Session: Initialization under CLI aborted.');
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return;
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} elseif ((bool) ini_get('session.auto_start')) {
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log_message('error', 'Session: session.auto_start is enabled in php.ini. Aborting.');
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return;
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} elseif (! empty($params['driver'])) {
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$this->_driver = $params['driver'];
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unset($params['driver']);
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} elseif ($driver = config_item('sess_driver')) {
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$this->_driver = $driver;
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}
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// Note: BC workaround
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elseif (config_item('sess_use_database')) {
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log_message('debug', 'Session: "sess_driver" is empty; using BC fallback to "sess_use_database".');
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$this->_driver = 'database';
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}
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$class = $this->_ci_load_classes($this->_driver);
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// Configuration ...
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$this->_configure($params);
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$this->_config['_sid_regexp'] = $this->_sid_regexp;
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$class = new $class($this->_config);
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$wrapper = new CI_SessionWrapper($class);
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if (is_php('5.4')) {
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session_set_save_handler($wrapper, true);
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} else {
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session_set_save_handler(
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array($wrapper, 'open'),
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array($wrapper, 'close'),
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array($wrapper, 'read'),
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array($wrapper, 'write'),
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array($wrapper, 'destroy'),
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array($wrapper, 'gc')
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);
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register_shutdown_function('session_write_close');
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}
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// Sanitize the cookie, because apparently PHP doesn't do that for userspace handlers
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if (
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isset($_COOKIE[$this->_config['cookie_name']])
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&& (
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! is_string($_COOKIE[$this->_config['cookie_name']])
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or ! preg_match('#\A' . $this->_sid_regexp . '\z#', $_COOKIE[$this->_config['cookie_name']])
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)
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) {
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unset($_COOKIE[$this->_config['cookie_name']]);
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}
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session_start();
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// Is session ID auto-regeneration configured? (ignoring ajax requests)
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if (
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(empty($_SERVER['HTTP_X_REQUESTED_WITH']) or strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) !== 'xmlhttprequest')
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&& ($regenerate_time = config_item('sess_time_to_update')) > 0
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) {
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if (! isset($_SESSION['__ci_last_regenerate'])) {
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$_SESSION['__ci_last_regenerate'] = time();
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} elseif ($_SESSION['__ci_last_regenerate'] < (time() - $regenerate_time)) {
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$this->sess_regenerate((bool) config_item('sess_regenerate_destroy'));
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}
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}
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// Another work-around ... PHP doesn't seem to send the session cookie
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// unless it is being currently created or regenerated
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elseif (isset($_COOKIE[$this->_config['cookie_name']]) && $_COOKIE[$this->_config['cookie_name']] === session_id()) {
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$expires = empty($this->_config['cookie_lifetime']) ? 0 : time() + $this->_config['cookie_lifetime'];
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if (is_php('7.3')) {
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setcookie(
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$this->_config['cookie_name'],
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session_id(),
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array(
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'expires' => $expires,
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'path' => $this->_config['cookie_path'],
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'domain' => $this->_config['cookie_domain'],
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'secure' => $this->_config['cookie_secure'],
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'httponly' => true,
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'samesite' => $this->_config['cookie_samesite']
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)
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);
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} else {
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$header = 'Set-Cookie: ' . $this->_config['cookie_name'] . '=' . session_id();
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$header .= empty($expires) ? '' : '; Expires=' . gmdate('D, d-M-Y H:i:s T', $expires) . '; Max-Age=' . $this->_config['cookie_lifetime'];
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$header .= '; Path=' . $this->_config['cookie_path'];
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$header .= ($this->_config['cookie_domain'] !== '' ? '; Domain=' . $this->_config['cookie_domain'] : '');
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$header .= ($this->_config['cookie_secure'] ? '; Secure' : '') . '; HttpOnly; SameSite=' . $this->_config['cookie_samesite'];
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header($header);
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}
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if (! $this->_config['cookie_secure'] && $this->_config['cookie_samesite'] === 'None') {
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log_message('error', "Session: '" . $this->_config['cookie_name'] . "' cookie sent with SameSite=None, but without Secure attribute.'");
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}
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}
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$this->_ci_init_vars();
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log_message('info', "Session: Class initialized using '" . $this->_driver . "' driver.");
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}
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// ------------------------------------------------------------------------
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/**
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* CI Load Classes
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*
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* An internal method to load all possible dependency and extension
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* classes. It kind of emulates the CI_Driver library, but is
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* self-sufficient.
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*
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* @param string $driver Driver name
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* @return string Driver class name
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*/
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protected function _ci_load_classes($driver)
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{
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// PHP 5.4 compatibility
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interface_exists('SessionHandlerInterface', false) or require_once(BASEPATH . 'libraries/Session/SessionHandlerInterface.php');
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// PHP 7 compatibility
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interface_exists('SessionUpdateTimestampHandlerInterface', false) or require_once(BASEPATH . 'libraries/Session/SessionUpdateTimestampHandlerInterface.php');
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require_once(BASEPATH . 'libraries/Session/CI_Session_driver_interface.php');
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$wrapper = is_php('8.0') ? 'PHP8SessionWrapper' : 'OldSessionWrapper';
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require_once(BASEPATH . 'libraries/Session/' . $wrapper . '.php');
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$prefix = config_item('subclass_prefix');
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if (! class_exists('CI_Session_driver', false)) {
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require_once(
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file_exists(APPPATH . 'libraries/Session/Session_driver.php')
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? APPPATH . 'libraries/Session/Session_driver.php'
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: BASEPATH . 'libraries/Session/Session_driver.php'
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);
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if (file_exists($file_path = APPPATH . 'libraries/Session/' . $prefix . 'Session_driver.php')) {
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require_once($file_path);
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}
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}
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$class = 'Session_' . $driver . '_driver';
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// Allow custom drivers without the CI_ or MY_ prefix
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if (! class_exists($class, false) && file_exists($file_path = APPPATH . 'libraries/Session/drivers/' . $class . '.php')) {
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require_once($file_path);
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if (class_exists($class, false)) {
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return $class;
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}
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}
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if (! class_exists('CI_' . $class, false)) {
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if (file_exists($file_path = APPPATH . 'libraries/Session/drivers/' . $class . '.php') or file_exists($file_path = BASEPATH . 'libraries/Session/drivers/' . $class . '.php')) {
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require_once($file_path);
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}
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if (! class_exists('CI_' . $class, false) && ! class_exists($class, false)) {
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throw new UnexpectedValueException("Session: Configured driver '" . $driver . "' was not found. Aborting.");
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}
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}
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if (! class_exists($prefix . $class, false) && file_exists($file_path = APPPATH . 'libraries/Session/drivers/' . $prefix . $class . '.php')) {
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require_once($file_path);
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if (class_exists($prefix . $class, false)) {
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return $prefix . $class;
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}
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log_message('debug', 'Session: ' . $prefix . $class . ".php found but it doesn't declare class " . $prefix . $class . '.');
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}
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return 'CI_' . $class;
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}
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// ------------------------------------------------------------------------
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/**
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* Configuration
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*
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* Handle input parameters and configuration defaults
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*
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* @param array &$params Input parameters
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* @return void
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*/
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protected function _configure(&$params)
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{
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$expiration = config_item('sess_expiration');
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if (isset($params['cookie_lifetime'])) {
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$params['cookie_lifetime'] = (int) $params['cookie_lifetime'];
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} else {
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$params['cookie_lifetime'] = (! isset($expiration) && config_item('sess_expire_on_close'))
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? 0 : (int) $expiration;
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}
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isset($params['cookie_name']) or $params['cookie_name'] = config_item('sess_cookie_name');
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if (empty($params['cookie_name'])) {
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$params['cookie_name'] = ini_get('session.name');
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} else {
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ini_set('session.name', $params['cookie_name']);
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}
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isset($params['cookie_path']) or $params['cookie_path'] = config_item('cookie_path');
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isset($params['cookie_domain']) or $params['cookie_domain'] = config_item('cookie_domain');
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isset($params['cookie_secure']) or $params['cookie_secure'] = (bool) config_item('cookie_secure');
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isset($params['cookie_samesite']) or $params['cookie_samesite'] = config_item('sess_samesite');
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if (! isset($params['cookie_samesite']) && is_php('7.3')) {
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$params['cookie_samesite'] = ini_get('session.cookie_samesite');
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}
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if (isset($params['cookie_samesite'])) {
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$params['cookie_samesite'] = ucfirst(strtolower($params['cookie_samesite']));
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in_array($params['cookie_samesite'], array('Lax', 'Strict', 'None'), true) or $params['cookie_samesite'] = 'Lax';
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} else {
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$params['cookie_samesite'] = 'Lax';
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}
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if (is_php('7.3')) {
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session_set_cookie_params(array(
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'lifetime' => $params['cookie_lifetime'],
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'path' => $params['cookie_path'],
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'domain' => $params['cookie_domain'],
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'secure' => $params['cookie_secure'],
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'httponly' => true,
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'samesite' => $params['cookie_samesite']
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));
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} else {
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session_set_cookie_params(
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$params['cookie_lifetime'],
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$params['cookie_path'] . '; SameSite=' . $params['cookie_samesite'],
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$params['cookie_domain'],
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$params['cookie_secure'],
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true // HttpOnly; Yes, this is intentional and not configurable for security reasons
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);
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}
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if (empty($expiration)) {
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$params['expiration'] = (int) ini_get('session.gc_maxlifetime');
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} else {
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$params['expiration'] = (int) $expiration;
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ini_set('session.gc_maxlifetime', $expiration);
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}
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$params['match_ip'] = (bool) (isset($params['match_ip']) ? $params['match_ip'] : config_item('sess_match_ip'));
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isset($params['save_path']) or $params['save_path'] = config_item('sess_save_path');
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$this->_config = $params;
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// Security is king
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ini_set('session.use_trans_sid', 0);
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ini_set('session.use_strict_mode', 1);
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ini_set('session.use_cookies', 1);
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ini_set('session.use_only_cookies', 1);
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$this->_configure_sid_length();
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}
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// ------------------------------------------------------------------------
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/**
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* Configure session ID length
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*
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* To make life easier, we used to force SHA-1 and 4 bits per
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* character on everyone. And of course, someone was unhappy.
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*
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* Then PHP 7.1 broke backwards-compatibility because ext/session
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* is such a mess that nobody wants to touch it with a pole stick,
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* and the one guy who does, nobody has the energy to argue with.
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*
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* So we were forced to make changes, and OF COURSE something was
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* going to break and now we have this pile of shit. -- Narf
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*
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* @return void
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*/
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protected function _configure_sid_length()
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{
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if (PHP_VERSION_ID < 70100) {
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$hash_function = ini_get('session.hash_function');
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if (ctype_digit($hash_function)) {
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if ($hash_function !== '1') {
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ini_set('session.hash_function', 1);
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}
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$bits = 160;
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} elseif (! in_array($hash_function, hash_algos(), true)) {
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ini_set('session.hash_function', 1);
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$bits = 160;
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} elseif (($bits = strlen(hash($hash_function, 'dummy', false)) * 4) < 160) {
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ini_set('session.hash_function', 1);
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$bits = 160;
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}
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$bits_per_character = (int) ini_get('session.hash_bits_per_character');
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$sid_length = (int) ceil($bits / $bits_per_character);
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} else {
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$bits_per_character = (int) ini_get('session.sid_bits_per_character');
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$sid_length = (int) ini_get('session.sid_length');
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if (($bits = $sid_length * $bits_per_character) < 160) {
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// Add as many more characters as necessary to reach at least 160 bits
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$sid_length += (int) ceil((160 % $bits) / $bits_per_character);
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ini_set('session.sid_length', $sid_length);
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}
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}
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// Yes, 4,5,6 are the only known possible values as of 2016-10-27
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switch ($bits_per_character) {
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case 4:
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$this->_sid_regexp = '[0-9a-f]';
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break;
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case 5:
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$this->_sid_regexp = '[0-9a-v]';
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break;
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case 6:
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$this->_sid_regexp = '[0-9a-zA-Z,-]';
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break;
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}
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$this->_sid_regexp .= '{' . $sid_length . '}';
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}
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// ------------------------------------------------------------------------
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/**
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* Handle temporary variables
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*
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* Clears old "flash" data, marks the new one for deletion and handles
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* "temp" data deletion.
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*
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* @return void
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*/
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protected function _ci_init_vars()
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{
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if (! empty($_SESSION['__ci_vars'])) {
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$current_time = time();
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foreach ($_SESSION['__ci_vars'] as $key => &$value) {
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if ($value === 'new') {
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$_SESSION['__ci_vars'][$key] = 'old';
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} elseif ($value === 'old' || $value < $current_time) {
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unset($_SESSION[$key], $_SESSION['__ci_vars'][$key]);
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}
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}
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if (empty($_SESSION['__ci_vars'])) {
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unset($_SESSION['__ci_vars']);
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}
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}
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$this->userdata = & $_SESSION;
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}
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// ------------------------------------------------------------------------
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/**
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* Mark as flash
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*
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* @param mixed $key Session data key(s)
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* @return bool
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*/
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public function mark_as_flash($key)
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{
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if (is_array($key)) {
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for ($i = 0, $c = count($key); $i < $c; $i++) {
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if (! isset($_SESSION[$key[$i]])) {
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return false;
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}
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}
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$new = array_fill_keys($key, 'new');
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$_SESSION['__ci_vars'] = isset($_SESSION['__ci_vars'])
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? array_merge($_SESSION['__ci_vars'], $new)
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: $new;
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return true;
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}
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if (! isset($_SESSION[$key])) {
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return false;
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}
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$_SESSION['__ci_vars'][$key] = 'new';
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return true;
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}
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|
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// ------------------------------------------------------------------------
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/**
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* Get flash keys
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*
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* @return array
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*/
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public function get_flash_keys()
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{
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if (! isset($_SESSION['__ci_vars'])) {
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return array();
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}
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$keys = array();
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foreach (array_keys($_SESSION['__ci_vars']) as $key) {
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is_int($_SESSION['__ci_vars'][$key]) or $keys[] = $key;
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}
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return $keys;
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}
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|
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// ------------------------------------------------------------------------
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/**
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* Unmark flash
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*
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* @param mixed $key Session data key(s)
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* @return void
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*/
|
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public function unmark_flash($key)
|
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{
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if (empty($_SESSION['__ci_vars'])) {
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return;
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}
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is_array($key) or $key = array($key);
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foreach ($key as $k) {
|
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if (isset($_SESSION['__ci_vars'][$k]) && ! is_int($_SESSION['__ci_vars'][$k])) {
|
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unset($_SESSION['__ci_vars'][$k]);
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}
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|
}
|
|
|
|
if (empty($_SESSION['__ci_vars'])) {
|
|
unset($_SESSION['__ci_vars']);
|
|
}
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Mark as temp
|
|
*
|
|
* @param mixed $key Session data key(s)
|
|
* @param int $ttl Time-to-live in seconds
|
|
* @return bool
|
|
*/
|
|
public function mark_as_temp($key, $ttl = 300)
|
|
{
|
|
$ttl += time();
|
|
|
|
if (is_array($key)) {
|
|
$temp = array();
|
|
|
|
foreach ($key as $k => $v) {
|
|
// Do we have a key => ttl pair, or just a key?
|
|
if (is_int($k)) {
|
|
$k = $v;
|
|
$v = $ttl;
|
|
} else {
|
|
$v += time();
|
|
}
|
|
|
|
if (! isset($_SESSION[$k])) {
|
|
return false;
|
|
}
|
|
|
|
$temp[$k] = $v;
|
|
}
|
|
|
|
$_SESSION['__ci_vars'] = isset($_SESSION['__ci_vars'])
|
|
? array_merge($_SESSION['__ci_vars'], $temp)
|
|
: $temp;
|
|
|
|
return true;
|
|
}
|
|
|
|
if (! isset($_SESSION[$key])) {
|
|
return false;
|
|
}
|
|
|
|
$_SESSION['__ci_vars'][$key] = $ttl;
|
|
return true;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Get temp keys
|
|
*
|
|
* @return array
|
|
*/
|
|
public function get_temp_keys()
|
|
{
|
|
if (! isset($_SESSION['__ci_vars'])) {
|
|
return array();
|
|
}
|
|
|
|
$keys = array();
|
|
foreach (array_keys($_SESSION['__ci_vars']) as $key) {
|
|
is_int($_SESSION['__ci_vars'][$key]) && $keys[] = $key;
|
|
}
|
|
|
|
return $keys;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Unmark temp
|
|
*
|
|
* @param mixed $key Session data key(s)
|
|
* @return void
|
|
*/
|
|
public function unmark_temp($key)
|
|
{
|
|
if (empty($_SESSION['__ci_vars'])) {
|
|
return;
|
|
}
|
|
|
|
is_array($key) or $key = array($key);
|
|
|
|
foreach ($key as $k) {
|
|
if (isset($_SESSION['__ci_vars'][$k]) && is_int($_SESSION['__ci_vars'][$k])) {
|
|
unset($_SESSION['__ci_vars'][$k]);
|
|
}
|
|
}
|
|
|
|
if (empty($_SESSION['__ci_vars'])) {
|
|
unset($_SESSION['__ci_vars']);
|
|
}
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* __get()
|
|
*
|
|
* @param string $key 'session_id' or a session data key
|
|
* @return mixed
|
|
*/
|
|
public function __get($key)
|
|
{
|
|
// Note: Keep this order the same, just in case somebody wants to
|
|
// use 'session_id' as a session data key, for whatever reason
|
|
if (isset($_SESSION[$key])) {
|
|
return $_SESSION[$key];
|
|
} elseif ($key === 'session_id') {
|
|
return session_id();
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* __isset()
|
|
*
|
|
* @param string $key 'session_id' or a session data key
|
|
* @return bool
|
|
*/
|
|
public function __isset($key)
|
|
{
|
|
if ($key === 'session_id') {
|
|
return (session_status() === PHP_SESSION_ACTIVE);
|
|
}
|
|
|
|
return isset($_SESSION[$key]);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* __set()
|
|
*
|
|
* @param string $key Session data key
|
|
* @param mixed $value Session data value
|
|
* @return void
|
|
*/
|
|
public function __set($key, $value)
|
|
{
|
|
$_SESSION[$key] = $value;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Session destroy
|
|
*
|
|
* Legacy CI_Session compatibility method
|
|
*
|
|
* @return void
|
|
*/
|
|
public function sess_destroy()
|
|
{
|
|
session_destroy();
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Session regenerate
|
|
*
|
|
* Legacy CI_Session compatibility method
|
|
*
|
|
* @param bool $destroy Destroy old session data flag
|
|
* @return void
|
|
*/
|
|
public function sess_regenerate($destroy = false)
|
|
{
|
|
$_SESSION['__ci_last_regenerate'] = time();
|
|
session_regenerate_id($destroy);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Get userdata reference
|
|
*
|
|
* Legacy CI_Session compatibility method
|
|
*
|
|
* @return array
|
|
*/
|
|
public function &get_userdata()
|
|
{
|
|
return $_SESSION;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Userdata (fetch)
|
|
*
|
|
* Legacy CI_Session compatibility method
|
|
*
|
|
* @param string $key Session data key
|
|
* @return mixed Session data value or NULL if not found
|
|
*/
|
|
public function userdata($key = null)
|
|
{
|
|
if (isset($key)) {
|
|
return isset($_SESSION[$key]) ? $_SESSION[$key] : null;
|
|
} elseif (empty($_SESSION)) {
|
|
return array();
|
|
}
|
|
|
|
$userdata = array();
|
|
$_exclude = array_merge(
|
|
array('__ci_vars'),
|
|
$this->get_flash_keys(),
|
|
$this->get_temp_keys()
|
|
);
|
|
|
|
foreach (array_keys($_SESSION) as $key) {
|
|
if (! in_array($key, $_exclude, true)) {
|
|
$userdata[$key] = $_SESSION[$key];
|
|
}
|
|
}
|
|
|
|
return $userdata;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Set userdata
|
|
*
|
|
* Legacy CI_Session compatibility method
|
|
*
|
|
* @param mixed $data Session data key or an associative array
|
|
* @param mixed $value Value to store
|
|
* @return void
|
|
*/
|
|
public function set_userdata($data, $value = null)
|
|
{
|
|
if (is_array($data)) {
|
|
foreach ($data as $key => &$value) {
|
|
$_SESSION[$key] = $value;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
$_SESSION[$data] = $value;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Unset userdata
|
|
*
|
|
* Legacy CI_Session compatibility method
|
|
*
|
|
* @param mixed $key Session data key(s)
|
|
* @return void
|
|
*/
|
|
public function unset_userdata($key)
|
|
{
|
|
if (is_array($key)) {
|
|
foreach ($key as $k) {
|
|
unset($_SESSION[$k]);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
unset($_SESSION[$key]);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* All userdata (fetch)
|
|
*
|
|
* Legacy CI_Session compatibility method
|
|
*
|
|
* @return array $_SESSION, excluding flash data items
|
|
*/
|
|
public function all_userdata()
|
|
{
|
|
return $this->userdata();
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Has userdata
|
|
*
|
|
* Legacy CI_Session compatibility method
|
|
*
|
|
* @param string $key Session data key
|
|
* @return bool
|
|
*/
|
|
public function has_userdata($key)
|
|
{
|
|
return isset($_SESSION[$key]);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Flashdata (fetch)
|
|
*
|
|
* Legacy CI_Session compatibility method
|
|
*
|
|
* @param string $key Session data key
|
|
* @return mixed Session data value or NULL if not found
|
|
*/
|
|
public function flashdata($key = null)
|
|
{
|
|
if (isset($key)) {
|
|
return (isset($_SESSION['__ci_vars'], $_SESSION['__ci_vars'][$key], $_SESSION[$key]) && ! is_int($_SESSION['__ci_vars'][$key]))
|
|
? $_SESSION[$key]
|
|
: null;
|
|
}
|
|
|
|
$flashdata = array();
|
|
|
|
if (! empty($_SESSION['__ci_vars'])) {
|
|
foreach ($_SESSION['__ci_vars'] as $key => &$value) {
|
|
is_int($value) or $flashdata[$key] = $_SESSION[$key];
|
|
}
|
|
}
|
|
|
|
return $flashdata;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Set flashdata
|
|
*
|
|
* Legacy CI_Session compatibility method
|
|
*
|
|
* @param mixed $data Session data key or an associative array
|
|
* @param mixed $value Value to store
|
|
* @return void
|
|
*/
|
|
public function set_flashdata($data, $value = null)
|
|
{
|
|
$this->set_userdata($data, $value);
|
|
$this->mark_as_flash(is_array($data) ? array_keys($data) : $data);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Keep flashdata
|
|
*
|
|
* Legacy CI_Session compatibility method
|
|
*
|
|
* @param mixed $key Session data key(s)
|
|
* @return void
|
|
*/
|
|
public function keep_flashdata($key)
|
|
{
|
|
$this->mark_as_flash($key);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Temp data (fetch)
|
|
*
|
|
* Legacy CI_Session compatibility method
|
|
*
|
|
* @param string $key Session data key
|
|
* @return mixed Session data value or NULL if not found
|
|
*/
|
|
public function tempdata($key = null)
|
|
{
|
|
if (isset($key)) {
|
|
return (isset($_SESSION['__ci_vars'], $_SESSION['__ci_vars'][$key], $_SESSION[$key]) && is_int($_SESSION['__ci_vars'][$key]))
|
|
? $_SESSION[$key]
|
|
: null;
|
|
}
|
|
|
|
$tempdata = array();
|
|
|
|
if (! empty($_SESSION['__ci_vars'])) {
|
|
foreach ($_SESSION['__ci_vars'] as $key => &$value) {
|
|
is_int($value) && $tempdata[$key] = $_SESSION[$key];
|
|
}
|
|
}
|
|
|
|
return $tempdata;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Set tempdata
|
|
*
|
|
* Legacy CI_Session compatibility method
|
|
*
|
|
* @param mixed $data Session data key or an associative array of items
|
|
* @param mixed $value Value to store
|
|
* @param int $ttl Time-to-live in seconds
|
|
* @return void
|
|
*/
|
|
public function set_tempdata($data, $value = null, $ttl = 300)
|
|
{
|
|
$this->set_userdata($data, $value);
|
|
$this->mark_as_temp(is_array($data) ? array_keys($data) : $data, $ttl);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Unset tempdata
|
|
*
|
|
* Legacy CI_Session compatibility method
|
|
*
|
|
* @param mixed $data Session data key(s)
|
|
* @return void
|
|
*/
|
|
public function unset_tempdata($key)
|
|
{
|
|
$this->unmark_temp($key);
|
|
}
|
|
}
|