mirror of
https://github.com/kamilwylegala/cakephp2-php8.git
synced 2025-03-16 14:39:51 +00:00
dcac88825a
Adding fix for Ticket #2335 Adding fix for Ticket #2344 Merged changes in dbo from 1.2 to 1.1 Merged changes to session handling in 1.2 to 1.1 Merged changes to Model::_ _saveMulti() in 1.2 to 1.1 Added Set::pushDiff() to append differences in array 2 to array 1 Added SessionComponent::activate() and SessionHelper::activate() to turn sessions usage on if AUTO_SESSION is set to false Added test for Ticket #2343 Added change to AclNode to use correct table naming Added garbage clean up to CakeSession::_ _close(); some installs, like Debian, have removed garbage clean up and use a cron job instead. Currently this change is only supported for database session. git-svn-id: https://svn.cakephp.org/repo/branches/1.2.x.x@4752 3807eeeb-6ff5-0310-8944-8be069107fe0
681 lines
No EOL
16 KiB
PHP
681 lines
No EOL
16 KiB
PHP
<?php
|
|
/* SVN FILE: $Id$ */
|
|
/**
|
|
* Session class for Cake.
|
|
*
|
|
* Cake abstracts the handling of sessions.
|
|
* There are several convenient methods to access session information.
|
|
* This class is the implementation of those methods.
|
|
* They are mostly used by the Session Component.
|
|
*
|
|
* PHP versions 4 and 5
|
|
*
|
|
* CakePHP(tm) : Rapid Development Framework <http://www.cakephp.org/>
|
|
* Copyright 2005-2007, Cake Software Foundation, Inc.
|
|
* 1785 E. Sahara Avenue, Suite 490-204
|
|
* Las Vegas, Nevada 89104
|
|
*
|
|
* Licensed under The MIT License
|
|
* Redistributions of files must retain the above copyright notice.
|
|
*
|
|
* @filesource
|
|
* @copyright Copyright 2005-2007, Cake Software Foundation, Inc.
|
|
* @link http://www.cakefoundation.org/projects/info/cakephp CakePHP(tm) Project
|
|
* @package cake
|
|
* @subpackage cake.cake.libs
|
|
* @since CakePHP(tm) v .0.10.0.1222
|
|
* @version $Revision$
|
|
* @modifiedby $LastChangedBy$
|
|
* @lastmodified $Date$
|
|
* @license http://www.opensource.org/licenses/mit-license.php The MIT License
|
|
*/
|
|
/**
|
|
* Database name for cake sessions.
|
|
*
|
|
*/
|
|
if (!defined('CAKE_SESSION_TABLE')) {
|
|
define('CAKE_SESSION_TABLE', 'cake_sessions');
|
|
}
|
|
|
|
if (CAKE_SESSION_SAVE === 'database') {
|
|
uses('model' . DS . 'connection_manager');
|
|
}
|
|
uses('set');
|
|
/**
|
|
* Session class for Cake.
|
|
*
|
|
* Cake abstracts the handling of sessions. There are several convenient methods to access session information.
|
|
* This class is the implementation of those methods. They are mostly used by the Session Component.
|
|
*
|
|
* @package cake
|
|
* @subpackage cake.cake.libs
|
|
*/
|
|
class CakeSession extends Object {
|
|
/**
|
|
* True if the Session is still valid
|
|
*
|
|
* @var boolean
|
|
* @access public
|
|
*/
|
|
var $valid = false;
|
|
/**
|
|
* Error messages for this session
|
|
*
|
|
* @var array
|
|
* @access public
|
|
*/
|
|
var $error = false;
|
|
/**
|
|
* User agent string
|
|
*
|
|
* @var string
|
|
* @access protected
|
|
*/
|
|
var $_userAgent = false;
|
|
/**
|
|
* Path to where the session is active.
|
|
*
|
|
* @var string
|
|
* @access public
|
|
*/
|
|
var $path = false;
|
|
/**
|
|
* Error number of last occurred error
|
|
*
|
|
* @var integer
|
|
* @access public
|
|
*/
|
|
var $lastError = null;
|
|
/**
|
|
* CAKE_SECURITY setting, "high", "medium", or "low".
|
|
*
|
|
* @var string
|
|
* @access public
|
|
*/
|
|
var $security = null;
|
|
/**
|
|
* Start time for this session.
|
|
*
|
|
* @var integer
|
|
* @access public
|
|
*/
|
|
var $time = false;
|
|
/**
|
|
* Time when this session becomes invalid.
|
|
*
|
|
* @var integer
|
|
* @access public
|
|
*/
|
|
var $sessionTime = false;
|
|
/**
|
|
* Keeps track of keys to watch for writes on
|
|
*
|
|
* @var array
|
|
* @access public
|
|
*/
|
|
var $watchKeys = array();
|
|
/**
|
|
* Constructor.
|
|
*
|
|
* @param string $base The base path for the Session
|
|
* @param boolean $start
|
|
* @access public
|
|
*/
|
|
function __construct($base = null, $start = true) {
|
|
if($start === true) {
|
|
$this->host = env('HTTP_HOST');
|
|
|
|
if (empty($base) || strpos($base, '?')) {
|
|
$this->path = '/';
|
|
} else {
|
|
$this->path = $base;
|
|
}
|
|
|
|
if (strpos($this->host, ':') !== false) {
|
|
$this->host = substr($this->host, 0, strpos($this->host, ':'));
|
|
}
|
|
|
|
if (env('HTTP_USER_AGENT') != null) {
|
|
$this->_userAgent = md5(env('HTTP_USER_AGENT') . CAKE_SESSION_STRING);
|
|
} else {
|
|
$this->_userAgent = "";
|
|
}
|
|
|
|
$this->time = time();
|
|
$this->sessionTime = $this->time + (Security::inactiveMins() * CAKE_SESSION_TIMEOUT);
|
|
$this->security = CAKE_SECURITY;
|
|
|
|
if (function_exists('session_write_close')) {
|
|
session_write_close();
|
|
}
|
|
|
|
$this->__initSession();
|
|
session_cache_limiter ("must-revalidate");
|
|
session_start();
|
|
header ('P3P: CP="NOI ADM DEV PSAi COM NAV OUR OTRo STP IND DEM"');
|
|
$this->__checkValid();
|
|
}
|
|
parent::__construct();
|
|
}
|
|
/**
|
|
* Returns true if given variable is set in session.
|
|
*
|
|
* @param string $name Variable name to check for
|
|
* @return boolean True if variable is there
|
|
* @access public
|
|
*/
|
|
function check($name) {
|
|
$var = $this->__validateKeys($name);
|
|
if (empty($var)) {
|
|
return false;
|
|
}
|
|
$result = Set::extract($_SESSION, $var);
|
|
return isset($result);
|
|
}
|
|
|
|
/**
|
|
* Temp method until we are able to remove the last eval()
|
|
*/
|
|
function __sessionVarNames($name) {
|
|
if (is_string($name) && preg_match("/^[0-9a-zA-Z._-]+$/", $name)) {
|
|
if (strpos($name, ".")) {
|
|
$names = explode(".", $name);
|
|
} else {
|
|
$names = array($name);
|
|
}
|
|
$expression="\$_SESSION";
|
|
foreach($names as $item) {
|
|
$expression .= is_numeric($item) ? "[$item]" : "['$item']";
|
|
}
|
|
return $expression;
|
|
}
|
|
$this->__setError(3, "$name is not a string");
|
|
return false;
|
|
}
|
|
/**
|
|
* Removes a variable from session.
|
|
*
|
|
* @param string $name Session variable to remove
|
|
* @return boolean Success
|
|
* @access public
|
|
*/
|
|
function del($name) {
|
|
if ($this->check($name)) {
|
|
if ($var = $this->__validateKeys($name)) {
|
|
if (in_array($var, $this->watchKeys)) {
|
|
trigger_error('Deleting session key {' . $var . '}', E_USER_NOTICE);
|
|
}
|
|
$this->__overwrite($_SESSION, Set::remove($_SESSION, $var));
|
|
return ($this->check($var) == false);
|
|
}
|
|
}
|
|
$this->__setError(2, "$name doesn't exist");
|
|
return false;
|
|
}
|
|
/**
|
|
* Used to write new data to _SESSION, since PHP doesn't like us setting the _SESSION var itself
|
|
*
|
|
* @param array $old
|
|
* @param array $new
|
|
* @return void
|
|
* @access private
|
|
*/
|
|
function __overwrite(&$old, $new) {
|
|
foreach ($old as $key => $var) {
|
|
if (!isset($new[$key])) {
|
|
unset($old[$key]);
|
|
}
|
|
}
|
|
foreach ($new as $key => $var) {
|
|
$old[$key] = $var;
|
|
}
|
|
}
|
|
/**
|
|
* Return error description for given error number.
|
|
*
|
|
* @param int $errorNumber
|
|
* @return string Error as string
|
|
* @access public
|
|
*/
|
|
function __error($errorNumber) {
|
|
if (!is_array($this->error) || !array_key_exists($errorNumber, $this->error)) {
|
|
return false;
|
|
} else {
|
|
return $this->error[$errorNumber];
|
|
}
|
|
}
|
|
/**
|
|
* Returns last occurred error as a string, if any.
|
|
*
|
|
* @return mixed Error description as a string, or false.
|
|
* @access public
|
|
*/
|
|
function error() {
|
|
if ($this->lastError) {
|
|
return $this->__error($this->lastError);
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
/**
|
|
* Returns true if session is valid.
|
|
*
|
|
* @return boolean
|
|
* @access public
|
|
*/
|
|
function valid() {
|
|
return $this->valid;
|
|
}
|
|
/**
|
|
* Returns given session variable, or all of them, if no parameters given.
|
|
*
|
|
* @param mixed $name The name of the session variable
|
|
* @return mixed The value of the session variable
|
|
* @access public
|
|
*/
|
|
function read($name = null) {
|
|
if (is_null($name)) {
|
|
return $this->__returnSessionVars();
|
|
}
|
|
if (empty($name)) {
|
|
return false;
|
|
}
|
|
$result = Set::extract($_SESSION, $name);
|
|
|
|
if (!is_null($result)) {
|
|
return $result;
|
|
}
|
|
$this->__setError(2, "$name doesn't exist");
|
|
return null;
|
|
}
|
|
/**
|
|
* Returns all session variables.
|
|
*
|
|
* @return mixed Full $_SESSION array, or false on error.
|
|
* @access public
|
|
*/
|
|
function __returnSessionVars() {
|
|
if (!empty($_SESSION)) {
|
|
return $_SESSION;
|
|
}
|
|
$this->__setError(2, "No Session vars set");
|
|
return false;
|
|
}
|
|
/**
|
|
* Tells Session to write a notification when a certain session path or subpath is written to
|
|
*
|
|
* @param mixed $var The variable path to watch
|
|
* @return void
|
|
*/
|
|
function watch($var) {
|
|
$var = $this->__validateKeys($var);
|
|
if (empty($var)) {
|
|
return false;
|
|
}
|
|
$this->watchKeys[] = $var;
|
|
}
|
|
/**
|
|
* Tells Session to stop watching a given key path
|
|
*
|
|
* @param mixed $var The variable path to watch
|
|
* @return void
|
|
*/
|
|
function ignore($var) {
|
|
$var = $this->__validateKeys($var);
|
|
if (!in_array($var, $this->watchKeys)) {
|
|
return;
|
|
}
|
|
foreach ($this->watchKeys as $i => $key) {
|
|
if ($key == $var) {
|
|
unset($this->watchKeys[$i]);
|
|
$this->watchKeys = array_values($this->watchKeys);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
/**
|
|
* Writes value to given session variable name.
|
|
*
|
|
* @param mixed $name
|
|
* @param string $value
|
|
* @return boolean True if the write was successful, false if the write failed
|
|
*/
|
|
function write($name, $value) {
|
|
$var = $this->__validateKeys($name);
|
|
|
|
if (empty($var)) {
|
|
return false;
|
|
}
|
|
if (in_array($var, $this->watchKeys)) {
|
|
trigger_error('Writing session key {' . $var . '}: ' . Debugger::exportVar($value), E_USER_NOTICE);
|
|
}
|
|
$this->__overwrite($_SESSION, Set::insert($_SESSION, $var, $value));
|
|
return (Set::extract($_SESSION, $var) == $value);
|
|
}
|
|
/**
|
|
* Method called on close of a database
|
|
* session
|
|
*
|
|
* @return boolean
|
|
* @access private
|
|
*/
|
|
function __close() {
|
|
$probability = mt_rand(1, 150);
|
|
if($probability <= 3) {
|
|
$this->__gc();
|
|
}
|
|
return true;
|
|
}
|
|
/**
|
|
* Method called on the destruction of a
|
|
* database session
|
|
*
|
|
* @param integer $key
|
|
* @return boolean
|
|
* @access private
|
|
*/
|
|
function __destroy($key) {
|
|
$db =& ConnectionManager::getDataSource('default');
|
|
$table = $db->fullTableName(CAKE_SESSION_TABLE);
|
|
$db->execute("DELETE FROM " . $db->name($table) . " WHERE " . $db->name($table.'.id') . " = " . $db->value($key, 'integer'));
|
|
return true;
|
|
}
|
|
/**
|
|
* Helper method to destroy invalid sessions.
|
|
*
|
|
* @return void
|
|
* @access private
|
|
*/
|
|
function destroy() {
|
|
$sessionpath = session_save_path();
|
|
if (empty($sessionpath)) {
|
|
$sessionpath = "/tmp";
|
|
}
|
|
|
|
if (isset($_COOKIE[session_name()])) {
|
|
setcookie(CAKE_SESSION_COOKIE, '', time() - 42000, $this->path);
|
|
}
|
|
|
|
$_SESSION = array();
|
|
$file = $sessionpath . DS . "sess_" . session_id();
|
|
@session_destroy();
|
|
@unlink ($file);
|
|
$this->__construct($this->path);
|
|
$this->renew();
|
|
}
|
|
/**
|
|
* Helper function called on gc for
|
|
* database sessions
|
|
*
|
|
* @param unknown_type $expires
|
|
* @return boolean
|
|
* @access private
|
|
*/
|
|
function __gc($expires = null) {
|
|
$db =& ConnectionManager::getDataSource('default');
|
|
$table = $db->fullTableName(CAKE_SESSION_TABLE);
|
|
$db->execute("DELETE FROM " . $db->name($table) . " WHERE " . $db->name($table.'.expires') . " < ". $db->value(time()));
|
|
return true;
|
|
}
|
|
/**
|
|
* Helper method to initialize a session, based on Cake core settings.
|
|
*
|
|
* @return void
|
|
* @access private
|
|
*/
|
|
function __initSession() {
|
|
switch($this->security) {
|
|
case 'high':
|
|
$this->cookieLifeTime=0;
|
|
if (function_exists('ini_set')) {
|
|
ini_set('session.referer_check', $this->host);
|
|
}
|
|
break;
|
|
case 'medium':
|
|
$this->cookieLifeTime = 7 * 86400;
|
|
break;
|
|
case 'low':
|
|
default:
|
|
$this->cookieLifeTime = 788940000;
|
|
break;
|
|
}
|
|
|
|
switch(CAKE_SESSION_SAVE) {
|
|
case 'cake':
|
|
if (!isset($_SESSION)) {
|
|
if (function_exists('ini_set')) {
|
|
ini_set('session.use_trans_sid', 0);
|
|
ini_set('url_rewriter.tags', '');
|
|
ini_set('session.serialize_handler', 'php');
|
|
ini_set('session.use_cookies', 1);
|
|
ini_set('session.name', CAKE_SESSION_COOKIE);
|
|
ini_set('session.cookie_lifetime', $this->cookieLifeTime);
|
|
ini_set('session.cookie_path', $this->path);
|
|
ini_set('session.gc_probability', 1);
|
|
ini_set('session.auto_start', 0);
|
|
ini_set('session.save_path', TMP . 'sessions');
|
|
}
|
|
}
|
|
break;
|
|
case 'database':
|
|
if (!isset($_SESSION)) {
|
|
if (function_exists('ini_set')) {
|
|
ini_set('session.use_trans_sid', 0);
|
|
ini_set('url_rewriter.tags', '');
|
|
ini_set('session.save_handler', 'user');
|
|
ini_set('session.serialize_handler', 'php');
|
|
ini_set('session.use_cookies', 1);
|
|
ini_set('session.name', CAKE_SESSION_COOKIE);
|
|
ini_set('session.cookie_lifetime', $this->cookieLifeTime);
|
|
ini_set('session.cookie_path', $this->path);
|
|
ini_set('session.gc_probability', 1);
|
|
ini_set('session.auto_start', 0);
|
|
}
|
|
}
|
|
session_set_save_handler(array('CakeSession','__open'),
|
|
array('CakeSession', '__close'),
|
|
array('CakeSession', '__read'),
|
|
array('CakeSession', '__write'),
|
|
array('CakeSession', '__destroy'),
|
|
array('CakeSession', '__gc'));
|
|
break;
|
|
case 'php':
|
|
if (!isset($_SESSION)) {
|
|
if (function_exists('ini_set')) {
|
|
ini_set('session.use_trans_sid', 0);
|
|
ini_set('session.name', CAKE_SESSION_COOKIE);
|
|
ini_set('session.cookie_lifetime', $this->cookieLifeTime);
|
|
ini_set('session.cookie_path', $this->path);
|
|
ini_set('session.gc_probability', 1);
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
if (!isset($_SESSION)) {
|
|
$config = CONFIGS . CAKE_SESSION_SAVE . '.php';
|
|
|
|
if (is_file($config)) {
|
|
require_once ($config);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
/**
|
|
* Helper method to create a new session.
|
|
*
|
|
* @return void
|
|
* @access private
|
|
*
|
|
*/
|
|
function __checkValid() {
|
|
if ($this->read('Config')) {
|
|
if ($this->_userAgent == $this->read("Config.userAgent") && $this->time <= $this->read("Config.time")) {
|
|
$this->write("Config.time", $this->sessionTime);
|
|
$this->valid = true;
|
|
} else {
|
|
$this->valid = false;
|
|
$this->__setError(1, "Session Highjacking Attempted !!!");
|
|
$this->destroy();
|
|
}
|
|
} else {
|
|
srand ((double)microtime() * 1000000);
|
|
$this->write("Config.userAgent", $this->_userAgent);
|
|
$this->write("Config.time", $this->sessionTime);
|
|
$this->write('Config.rand', rand());
|
|
$this->valid = true;
|
|
$this->__setError(1, "Session is valid");
|
|
}
|
|
}
|
|
/**
|
|
* Method called on open of a database
|
|
* sesson
|
|
*
|
|
* @return boolean
|
|
* @access private
|
|
*
|
|
*/
|
|
function __open() {
|
|
return true;
|
|
}
|
|
/**
|
|
* Method used to read from a database
|
|
* session
|
|
*
|
|
* @param mixed $key The key of the value to read
|
|
* @return mixed The value of the key or false if it does not exist
|
|
* @access private
|
|
*/
|
|
function __read($key) {
|
|
$db =& ConnectionManager::getDataSource('default');
|
|
$table = $db->fullTableName(CAKE_SESSION_TABLE, false);
|
|
$row = $db->query("SELECT " . $db->name($table.'.data') . " FROM " . $db->name($table) . " WHERE " . $db->name($table.'.id') . " = " . $db->value($key), false);
|
|
|
|
if ($row && !isset($row[0][$table]) && isset($row[0][0])) {
|
|
$table = 0;
|
|
}
|
|
|
|
if ($row && $row[0][$table]['data']) {
|
|
return $row[0][$table]['data'];
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
/**
|
|
* Helper method to restart a session.
|
|
*
|
|
* @return void
|
|
* @access private
|
|
*/
|
|
function __regenerateId() {
|
|
$oldSessionId = session_id();
|
|
$sessionpath = session_save_path();
|
|
if (empty($sessionpath)) {
|
|
$sessionpath = "/tmp";
|
|
}
|
|
|
|
if (isset($_COOKIE[session_name()])) {
|
|
setcookie(CAKE_SESSION_COOKIE, '', time() - 42000, $this->path);
|
|
}
|
|
session_regenerate_id();
|
|
$newSessid = session_id();
|
|
|
|
if (function_exists('session_write_close')) {
|
|
session_write_close();
|
|
}
|
|
$this->__initSession();
|
|
session_id($oldSessionId);
|
|
session_start();
|
|
session_destroy();
|
|
$file = $sessionpath . DS . "sess_$oldSessionId";
|
|
@unlink($file);
|
|
$this->__initSession();
|
|
session_id ($newSessid);
|
|
session_start();
|
|
}
|
|
/**
|
|
* Restarts this session.
|
|
*
|
|
* @return void
|
|
* @access public
|
|
*/
|
|
function renew() {
|
|
$this->__regenerateId();
|
|
}
|
|
/**
|
|
* Validate that the $name is in correct dot notation
|
|
* example: $name = 'ControllerName.key';
|
|
*
|
|
* @param string $name Session key names as string.
|
|
* @return boolean false is $name is not correct format
|
|
* @access private
|
|
*/
|
|
function __validateKeys($name) {
|
|
if (is_string($name) && preg_match("/^[0-9a-zA-Z._-]+$/", $name)) {
|
|
return $name;
|
|
}
|
|
$this->__setError(3, "$name is not a string");
|
|
return false;
|
|
}
|
|
/**
|
|
* Helper method to set an internal error message.
|
|
*
|
|
* @param int $errorNumber Number of the error
|
|
* @param string $errorMessage Description of the error
|
|
* @return void
|
|
* @access private
|
|
*/
|
|
function __setError($errorNumber, $errorMessage) {
|
|
if ($this->error === false) {
|
|
$this->error = array();
|
|
}
|
|
$this->error[$errorNumber] = $errorMessage;
|
|
$this->lastError = $errorNumber;
|
|
}
|
|
/**
|
|
* Helper function called on write for database
|
|
* sessions
|
|
*
|
|
* @param mixed $key The name of the var
|
|
* @param mixed $value The value of the var
|
|
* @return boolean
|
|
* @access private
|
|
*/
|
|
function __write($key, $value) {
|
|
$db =& ConnectionManager::getDataSource('default');
|
|
$table = $db->fullTableName(CAKE_SESSION_TABLE);
|
|
|
|
switch(CAKE_SECURITY) {
|
|
case 'high':
|
|
$factor = 10;
|
|
break;
|
|
case 'medium':
|
|
$factor = 100;
|
|
break;
|
|
case 'low':
|
|
$factor = 300;
|
|
break;
|
|
default:
|
|
$factor = 10;
|
|
break;
|
|
}
|
|
$expires = time() + CAKE_SESSION_TIMEOUT * $factor;
|
|
$row = $db->query("SELECT COUNT(id) AS count FROM " . $db->name($table) . " WHERE "
|
|
. $db->name('id') . " = "
|
|
. $db->value($key), false);
|
|
|
|
if ($row[0][0]['count'] > 0) {
|
|
$db->execute("UPDATE " . $db->name($table) . " SET " . $db->name('data') . " = "
|
|
. $db->value($value) . ", " . $db->name('expires') . " = "
|
|
. $db->value($expires) . " WHERE " . $db->name('id') . " = "
|
|
. $db->value($key));
|
|
} else {
|
|
$db->execute("INSERT INTO " . $db->name($table) . " (" . $db->name('data') . ","
|
|
. $db->name('expires') . "," . $db->name('id')
|
|
. ") VALUES (" . $db->value($value) . ", " . $db->value($expires) . ", "
|
|
. $db->value($key) . ")");
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
?>
|