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authorAndrey Andreev <narf@bofh.bg>2012-10-05 21:45:41 +0200
committerAndrey Andreev <narf@bofh.bg>2012-10-05 21:45:41 +0200
commit5b5021812ea6dc859312e00b6b0f078eea54c88d (patch)
tree0a8840ee0429cc405cb597438a73d03bca970c1a /system/libraries/Session/drivers/Session_native.php
parent49d08053257b55db511eaca08b8ab5d12149f3b6 (diff)
parentdbad54e09a39a77c7404dee9ca1a6b34299469d0 (diff)
Merge upstream branch
Diffstat (limited to 'system/libraries/Session/drivers/Session_native.php')
-rwxr-xr-xsystem/libraries/Session/drivers/Session_native.php232
1 files changed, 232 insertions, 0 deletions
diff --git a/system/libraries/Session/drivers/Session_native.php b/system/libraries/Session/drivers/Session_native.php
new file mode 100755
index 000000000..c97e15356
--- /dev/null
+++ b/system/libraries/Session/drivers/Session_native.php
@@ -0,0 +1,232 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.2.4 or newer
+ *
+ * NOTICE OF LICENSE
+ *
+ * Licensed under the Open Software License version 3.0
+ *
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst. It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
+ * @package CodeIgniter
+ * @author EllisLab Dev Team
+ * @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
+ * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * @link http://codeigniter.com
+ * @since Version 1.0
+ * @filesource
+ */
+
+/**
+ * Native PHP session management driver
+ *
+ * This is the driver that uses the native PHP $_SESSION array through the Session driver library.
+ *
+ * @package CodeIgniter
+ * @subpackage Libraries
+ * @category Sessions
+ * @author EllisLab Dev Team
+ */
+class CI_Session_native extends CI_Session_driver {
+
+ /**
+ * Initialize session driver object
+ *
+ * @return void
+ */
+ protected function initialize()
+ {
+ // Get config parameters
+ $config = array();
+ $CI =& get_instance();
+ $prefs = array(
+ 'sess_cookie_name',
+ 'sess_expire_on_close',
+ 'sess_expiration',
+ 'sess_match_ip',
+ 'sess_match_useragent',
+ 'sess_time_to_update',
+ 'cookie_prefix',
+ 'cookie_path',
+ 'cookie_domain'
+ );
+
+ foreach ($prefs as $key)
+ {
+ $config[$key] = isset($this->_parent->params[$key])
+ ? $this->_parent->params[$key]
+ : $CI->config->item($key);
+ }
+
+ // Set session name, if specified
+ if ($config['sess_cookie_name'])
+ {
+ // Differentiate name from cookie driver with '_id' suffix
+ $name = $config['sess_cookie_name'].'_id';
+ if ($config['cookie_prefix'])
+ {
+ // Prepend cookie prefix
+ $name = $config['cookie_prefix'].$name;
+ }
+ session_name($name);
+ }
+
+ // Set expiration, path, and domain
+ $expire = 7200;
+ $path = '/';
+ $domain = '';
+ if ($config['sess_expiration'] !== FALSE)
+ {
+ // Default to 2 years if expiration is "0"
+ $expire = ($config['sess_expiration'] == 0) ? (60*60*24*365*2) : $config['sess_expiration'];
+ }
+
+ if ($config['cookie_path'])
+ {
+ // Use specified path
+ $path = $config['cookie_path'];
+ }
+
+ if ($config['cookie_domain'])
+ {
+ // Use specified domain
+ $domain = $config['cookie_domain'];
+ }
+ session_set_cookie_params($config['sess_expire_on_close'] ? 0 : $expire, $path, $domain);
+
+ // Start session
+ session_start();
+
+ // Check session expiration, ip, and agent
+ $now = time();
+ $destroy = FALSE;
+ if (isset($_SESSION['last_activity']) && ($_SESSION['last_activity'] + $expire) < $now)
+ {
+ // Expired - destroy
+ $destroy = TRUE;
+ }
+ elseif ($config['sess_match_ip'] === TRUE && isset($_SESSION['ip_address'])
+ && $_SESSION['ip_address'] !== $CI->input->ip_address())
+ {
+ // IP doesn't match - destroy
+ $destroy = TRUE;
+ }
+ elseif ($config['sess_match_useragent'] === TRUE && isset($_SESSION['user_agent'])
+ && $_SESSION['user_agent'] !== trim(substr($CI->input->user_agent(), 0, 50)))
+ {
+ // Agent doesn't match - destroy
+ $destroy = TRUE;
+ }
+
+ // Destroy expired or invalid session
+ if ($destroy)
+ {
+ // Clear old session and start new
+ $this->sess_destroy();
+ session_start();
+ }
+
+ // Check for update time
+ if ($config['sess_time_to_update'] && isset($_SESSION['last_activity'])
+ && ($_SESSION['last_activity'] + $config['sess_time_to_update']) < $now)
+ {
+ // Regenerate ID, but don't destroy session
+ $this->sess_regenerate(FALSE);
+ }
+
+ // Set activity time
+ $_SESSION['last_activity'] = $now;
+
+ // Set matching values as required
+ if ($config['sess_match_ip'] === TRUE && ! isset($_SESSION['ip_address']))
+ {
+ // Store user IP address
+ $_SESSION['ip_address'] = $CI->input->ip_address();
+ }
+
+ if ($config['sess_match_useragent'] === TRUE && ! isset($_SESSION['user_agent']))
+ {
+ // Store user agent string
+ $_SESSION['user_agent'] = trim(substr($CI->input->user_agent(), 0, 50));
+ }
+
+ // Make session ID available
+ $_SESSION['session_id'] = session_id();
+ }
+
+ // ------------------------------------------------------------------------
+
+ /**
+ * Save the session data
+ *
+ * @return void
+ */
+ public function sess_save()
+ {
+ // Nothing to do - changes to $_SESSION are automatically saved
+ }
+
+ // ------------------------------------------------------------------------
+
+ /**
+ * Destroy the current session
+ *
+ * @return void
+ */
+ public function sess_destroy()
+ {
+ // Cleanup session
+ $_SESSION = array();
+ $name = session_name();
+ if (isset($_COOKIE[$name]))
+ {
+ // Clear session cookie
+ $params = session_get_cookie_params();
+ setcookie($name, '', time() - 42000, $params['path'], $params['domain']);
+ unset($_COOKIE[$name]);
+ }
+ session_destroy();
+ }
+
+ // ------------------------------------------------------------------------
+
+ /**
+ * Regenerate the current session
+ *
+ * Regenerate the session id
+ *
+ * @param bool Destroy session data flag (default: FALSE)
+ * @return void
+ */
+ public function sess_regenerate($destroy = FALSE)
+ {
+ // Just regenerate id, passing destroy flag
+ session_regenerate_id($destroy);
+ $_SESSION['session_id'] = session_id();
+ }
+
+ // ------------------------------------------------------------------------
+
+ /**
+ * Get a reference to user data array
+ *
+ * @return array Reference to userdata
+ */
+ public function &get_userdata()
+ {
+ // Just return reference to $_SESSION
+ return $_SESSION;
+ }
+
+}
+
+/* End of file Session_native.php */
+/* Location: ./system/libraries/Session/drivers/Session_native.php */ \ No newline at end of file