535 lines
14 KiB
PHP
535 lines
14 KiB
PHP
<?php
|
|
/**
|
|
* Cookie Component
|
|
*
|
|
* CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
|
|
* Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
|
|
*
|
|
* Licensed under The MIT License
|
|
* For full copyright and license information, please see the LICENSE.txt
|
|
* Redistributions of files must retain the above copyright notice.
|
|
*
|
|
* @copyright Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
|
|
* @link https://cakephp.org CakePHP(tm) Project
|
|
* @package Cake.Controller.Component
|
|
* @since CakePHP(tm) v 1.2.0.4213
|
|
* @license https://opensource.org/licenses/mit-license.php MIT License
|
|
*/
|
|
|
|
App::uses('Component', 'Controller');
|
|
App::uses('Security', 'Utility');
|
|
App::uses('Hash', 'Utility');
|
|
|
|
/**
|
|
* Cookie Component.
|
|
*
|
|
* Cookie handling for the controller.
|
|
*
|
|
* @package Cake.Controller.Component
|
|
* @link https://book.cakephp.org/2.0/en/core-libraries/components/cookie.html
|
|
*/
|
|
class CookieComponent extends Component {
|
|
|
|
/**
|
|
* The name of the cookie.
|
|
*
|
|
* Overridden with the controller beforeFilter();
|
|
* $this->Cookie->name = 'CookieName';
|
|
*
|
|
* @var string
|
|
*/
|
|
public $name = 'CakeCookie';
|
|
|
|
/**
|
|
* The time a cookie will remain valid.
|
|
*
|
|
* Can be either integer Unix timestamp or a date string.
|
|
*
|
|
* Overridden with the controller beforeFilter();
|
|
* $this->Cookie->time = '5 Days';
|
|
*
|
|
* @var mixed
|
|
*/
|
|
public $time = null;
|
|
|
|
/**
|
|
* Cookie path.
|
|
*
|
|
* Overridden with the controller beforeFilter();
|
|
* $this->Cookie->path = '/';
|
|
*
|
|
* The path on the server in which the cookie will be available on.
|
|
* If public $cookiePath is set to '/foo/', the cookie will only be available
|
|
* within the /foo/ directory and all sub-directories such as /foo/bar/ of domain.
|
|
* The default value is the entire domain.
|
|
*
|
|
* @var string
|
|
*/
|
|
public $path = '/';
|
|
|
|
/**
|
|
* Domain path.
|
|
*
|
|
* The domain that the cookie is available.
|
|
*
|
|
* Overridden with the controller beforeFilter();
|
|
* $this->Cookie->domain = '.example.com';
|
|
*
|
|
* To make the cookie available on all subdomains of example.com.
|
|
* Set $this->Cookie->domain = '.example.com'; in your controller beforeFilter
|
|
*
|
|
* @var string
|
|
*/
|
|
public $domain = '';
|
|
|
|
/**
|
|
* Secure HTTPS only cookie.
|
|
*
|
|
* Overridden with the controller beforeFilter();
|
|
* $this->Cookie->secure = true;
|
|
*
|
|
* Indicates that the cookie should only be transmitted over a secure HTTPS connection.
|
|
* When set to true, the cookie will only be set if a secure connection exists.
|
|
*
|
|
* @var bool
|
|
*/
|
|
public $secure = false;
|
|
|
|
/**
|
|
* Encryption key.
|
|
*
|
|
* Overridden with the controller beforeFilter();
|
|
* $this->Cookie->key = 'SomeRandomString';
|
|
*
|
|
* @var string
|
|
*/
|
|
public $key = null;
|
|
|
|
/**
|
|
* HTTP only cookie
|
|
*
|
|
* Set to true to make HTTP only cookies. Cookies that are HTTP only
|
|
* are not accessible in JavaScript.
|
|
*
|
|
* @var bool
|
|
*/
|
|
public $httpOnly = false;
|
|
|
|
/**
|
|
* Values stored in the cookie.
|
|
*
|
|
* Accessed in the controller using $this->Cookie->read('Name.key');
|
|
*
|
|
* @see CookieComponent::read();
|
|
* @var string
|
|
*/
|
|
protected $_values = array();
|
|
|
|
/**
|
|
* Type of encryption to use.
|
|
*
|
|
* Currently two methods are available: cipher and rijndael
|
|
* Defaults to Security::cipher(). Cipher is horribly insecure and only
|
|
* the default because of backwards compatibility. In new applications you should
|
|
* always change this to 'aes' or 'rijndael'.
|
|
*
|
|
* @var string
|
|
*/
|
|
protected $_type = 'cipher';
|
|
|
|
/**
|
|
* Used to reset cookie time if $expire is passed to CookieComponent::write()
|
|
*
|
|
* @var string
|
|
*/
|
|
protected $_reset = null;
|
|
|
|
/**
|
|
* Expire time of the cookie
|
|
*
|
|
* This is controlled by CookieComponent::time;
|
|
*
|
|
* @var string
|
|
*/
|
|
protected $_expires = 0;
|
|
|
|
/**
|
|
* A reference to the Controller's CakeResponse object
|
|
*
|
|
* @var CakeResponse
|
|
*/
|
|
protected $_response = null;
|
|
|
|
/**
|
|
* Constructor
|
|
*
|
|
* @param ComponentCollection $collection A ComponentCollection for this component
|
|
* @param array $settings Array of settings.
|
|
*/
|
|
public function __construct(ComponentCollection $collection, $settings = array()) {
|
|
$this->key = Configure::read('Security.salt');
|
|
parent::__construct($collection, $settings);
|
|
if (isset($this->time)) {
|
|
$this->_expire($this->time);
|
|
}
|
|
|
|
$controller = $collection->getController();
|
|
if ($controller && isset($controller->response)) {
|
|
$this->_response = $controller->response;
|
|
} else {
|
|
$this->_response = new CakeResponse();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Start CookieComponent for use in the controller
|
|
*
|
|
* @param Controller $controller Controller instance.
|
|
* @return void
|
|
*/
|
|
public function startup(Controller $controller) {
|
|
$this->_expire($this->time);
|
|
|
|
$this->_values[$this->name] = array();
|
|
}
|
|
|
|
/**
|
|
* Write a value to the $_COOKIE[$key];
|
|
*
|
|
* Optional [Name.], required key, optional $value, optional $encrypt, optional $expires
|
|
* $this->Cookie->write('[Name.]key, $value);
|
|
*
|
|
* By default all values are encrypted.
|
|
* You must pass $encrypt false to store values in clear test
|
|
*
|
|
* You must use this method before any output is sent to the browser.
|
|
* Failure to do so will result in header already sent errors.
|
|
*
|
|
* @param string|array $key Key for the value
|
|
* @param mixed $value Value
|
|
* @param bool $encrypt Set to true to encrypt value, false otherwise
|
|
* @param int|string $expires Can be either the number of seconds until a cookie
|
|
* expires, or a strtotime compatible time offset.
|
|
* @return void
|
|
* @link https://book.cakephp.org/2.0/en/core-libraries/components/cookie.html#CookieComponent::write
|
|
*/
|
|
public function write($key, $value = null, $encrypt = true, $expires = null) {
|
|
if (empty($this->_values[$this->name])) {
|
|
$this->read();
|
|
}
|
|
|
|
if ($encrypt === null) {
|
|
$encrypt = true;
|
|
}
|
|
$this->_encrypted = $encrypt;
|
|
$this->_expire($expires);
|
|
|
|
if (!is_array($key)) {
|
|
$key = array($key => $value);
|
|
}
|
|
|
|
foreach ($key as $name => $value) {
|
|
if (strpos($name, '.') !== false) {
|
|
$this->_values[$this->name] = Hash::insert($this->_values[$this->name], $name, $value);
|
|
list($name) = explode('.', $name, 2);
|
|
$value = $this->_values[$this->name][$name];
|
|
} else {
|
|
$this->_values[$this->name][$name] = $value;
|
|
}
|
|
$this->_write('[' . $name . ']', $value);
|
|
}
|
|
$this->_encrypted = true;
|
|
}
|
|
|
|
/**
|
|
* Read the value of the $_COOKIE[$key];
|
|
*
|
|
* Optional [Name.], required key
|
|
* $this->Cookie->read(Name.key);
|
|
*
|
|
* @param string $key Key of the value to be obtained. If none specified, obtain map key => values
|
|
* @return string|array|null Value for specified key
|
|
* @link https://book.cakephp.org/2.0/en/core-libraries/components/cookie.html#CookieComponent::read
|
|
*/
|
|
public function read($key = null) {
|
|
if (empty($this->_values[$this->name]) && isset($_COOKIE[$this->name])) {
|
|
$this->_values[$this->name] = $this->_decrypt($_COOKIE[$this->name]);
|
|
}
|
|
if (empty($this->_values[$this->name])) {
|
|
$this->_values[$this->name] = array();
|
|
}
|
|
if ($key === null) {
|
|
return $this->_values[$this->name];
|
|
}
|
|
return Hash::get($this->_values[$this->name], $key);
|
|
}
|
|
|
|
/**
|
|
* Returns true if given variable is set in cookie.
|
|
*
|
|
* @param string $key Variable name to check for
|
|
* @return bool True if variable is there
|
|
*/
|
|
public function check($key = null) {
|
|
if (empty($key)) {
|
|
return false;
|
|
}
|
|
return $this->read($key) !== null;
|
|
}
|
|
|
|
/**
|
|
* Delete a cookie value
|
|
*
|
|
* Optional [Name.], required key
|
|
* $this->Cookie->delete('Name.key);
|
|
*
|
|
* You must use this method before any output is sent to the browser.
|
|
* Failure to do so will result in header already sent errors.
|
|
*
|
|
* This method will delete both the top level and 2nd level cookies set.
|
|
* For example assuming that $name = App, deleting `User` will delete
|
|
* both `App[User]` and any other cookie values like `App[User][email]`
|
|
* This is done to clean up cookie storage from before 2.4.3, where cookies
|
|
* were stored inconsistently.
|
|
*
|
|
* @param string $key Key of the value to be deleted
|
|
* @return void
|
|
* @link https://book.cakephp.org/2.0/en/core-libraries/components/cookie.html#CookieComponent::delete
|
|
*/
|
|
public function delete($key) {
|
|
if (empty($this->_values[$this->name])) {
|
|
$this->read();
|
|
}
|
|
if (strpos($key, '.') === false) {
|
|
unset($this->_values[$this->name][$key]);
|
|
$this->_delete('[' . $key . ']');
|
|
} else {
|
|
$this->_values[$this->name] = Hash::remove((array)$this->_values[$this->name], $key);
|
|
list($key) = explode('.', $key, 2);
|
|
if (isset($this->_values[$this->name][$key])) {
|
|
$value = $this->_values[$this->name][$key];
|
|
$this->_write('[' . $key . ']', $value);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Destroy current cookie
|
|
*
|
|
* You must use this method before any output is sent to the browser.
|
|
* Failure to do so will result in header already sent errors.
|
|
*
|
|
* @return void
|
|
* @link https://book.cakephp.org/2.0/en/core-libraries/components/cookie.html#CookieComponent::destroy
|
|
*/
|
|
public function destroy() {
|
|
if (isset($_COOKIE[$this->name])) {
|
|
$this->_values[$this->name] = $this->_decrypt($_COOKIE[$this->name]);
|
|
}
|
|
|
|
foreach ($this->_values[$this->name] as $name => $value) {
|
|
$this->delete($name);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Will allow overriding default encryption method. Use this method
|
|
* in ex: AppController::beforeFilter() before you have read or
|
|
* written any cookies.
|
|
*
|
|
* @param string $type Encryption method
|
|
* @return void
|
|
*/
|
|
public function type($type = 'cipher') {
|
|
$availableTypes = array(
|
|
'cipher',
|
|
'rijndael',
|
|
'aes'
|
|
);
|
|
if (!in_array($type, $availableTypes)) {
|
|
trigger_error(__d('cake_dev', 'You must use cipher, rijndael or aes for cookie encryption type'), E_USER_WARNING);
|
|
$type = 'cipher';
|
|
}
|
|
$this->_type = $type;
|
|
}
|
|
|
|
/**
|
|
* Set the expire time for a session variable.
|
|
*
|
|
* Creates a new expire time for a session variable.
|
|
* $expire can be either integer Unix timestamp or a date string.
|
|
*
|
|
* Used by write()
|
|
* CookieComponent::write(string, string, boolean, 8400);
|
|
* CookieComponent::write(string, string, boolean, '5 Days');
|
|
*
|
|
* @param int|string $expires Can be either Unix timestamp, or date string
|
|
* @return int Unix timestamp
|
|
*/
|
|
protected function _expire($expires = null) {
|
|
if ($expires === null) {
|
|
return $this->_expires;
|
|
}
|
|
$this->_reset = $this->_expires;
|
|
if (!$expires) {
|
|
return $this->_expires = 0;
|
|
}
|
|
$now = new DateTime();
|
|
|
|
if (is_int($expires) || is_numeric($expires)) {
|
|
return $this->_expires = $now->format('U') + (int)$expires;
|
|
}
|
|
$now->modify($expires);
|
|
return $this->_expires = $now->format('U');
|
|
}
|
|
|
|
/**
|
|
* Set cookie
|
|
*
|
|
* @param string $name Name for cookie
|
|
* @param string $value Value for cookie
|
|
* @return void
|
|
*/
|
|
protected function _write($name, $value) {
|
|
$this->_response->cookie(array(
|
|
'name' => $this->name . $name,
|
|
'value' => $this->_encrypt($value),
|
|
'expire' => $this->_expires,
|
|
'path' => $this->path,
|
|
'domain' => $this->domain,
|
|
'secure' => $this->secure,
|
|
'httpOnly' => $this->httpOnly
|
|
));
|
|
|
|
if (!empty($this->_reset)) {
|
|
$this->_expires = $this->_reset;
|
|
$this->_reset = null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sets a cookie expire time to remove cookie value
|
|
*
|
|
* @param string $name Name of cookie
|
|
* @return void
|
|
*/
|
|
protected function _delete($name) {
|
|
$this->_response->cookie(array(
|
|
'name' => $this->name . $name,
|
|
'value' => '',
|
|
'expire' => time() - 42000,
|
|
'path' => $this->path,
|
|
'domain' => $this->domain,
|
|
'secure' => $this->secure,
|
|
'httpOnly' => $this->httpOnly
|
|
));
|
|
}
|
|
|
|
/**
|
|
* Encrypts $value using public $type method in Security class
|
|
*
|
|
* @param string $value Value to encrypt
|
|
* @return string Encoded values
|
|
*/
|
|
protected function _encrypt($value) {
|
|
if (is_array($value)) {
|
|
$value = $this->_implode($value);
|
|
}
|
|
if (!$this->_encrypted) {
|
|
return $value;
|
|
}
|
|
$prefix = "Q2FrZQ==.";
|
|
if ($this->_type === 'rijndael') {
|
|
$cipher = Security::rijndael($value, $this->key, 'encrypt');
|
|
}
|
|
if ($this->_type === 'cipher') {
|
|
$cipher = Security::cipher($value, $this->key);
|
|
}
|
|
if ($this->_type === 'aes') {
|
|
$cipher = Security::encrypt($value, $this->key);
|
|
}
|
|
return $prefix . base64_encode($cipher);
|
|
}
|
|
|
|
/**
|
|
* Decrypts $value using public $type method in Security class
|
|
*
|
|
* @param array $values Values to decrypt
|
|
* @return array decrypted string
|
|
*/
|
|
protected function _decrypt($values) {
|
|
$decrypted = array();
|
|
$type = $this->_type;
|
|
|
|
foreach ((array)$values as $name => $value) {
|
|
if (is_array($value)) {
|
|
foreach ($value as $key => $val) {
|
|
$decrypted[$name][$key] = $this->_decode($val);
|
|
}
|
|
} else {
|
|
$decrypted[$name] = $this->_decode($value);
|
|
}
|
|
}
|
|
return $decrypted;
|
|
}
|
|
|
|
/**
|
|
* Decodes and decrypts a single value.
|
|
*
|
|
* @param string $value The value to decode & decrypt.
|
|
* @return string|array Decoded value.
|
|
*/
|
|
protected function _decode($value) {
|
|
$prefix = 'Q2FrZQ==.';
|
|
$pos = strpos($value, $prefix);
|
|
if ($pos === false) {
|
|
return $this->_explode($value);
|
|
}
|
|
$value = base64_decode(substr($value, strlen($prefix)));
|
|
if ($this->_type === 'rijndael') {
|
|
$plain = Security::rijndael($value, $this->key, 'decrypt');
|
|
}
|
|
if ($this->_type === 'cipher') {
|
|
$plain = Security::cipher($value, $this->key);
|
|
}
|
|
if ($this->_type === 'aes') {
|
|
$plain = Security::decrypt($value, $this->key);
|
|
}
|
|
return $this->_explode($plain);
|
|
}
|
|
|
|
/**
|
|
* Implode method to keep keys are multidimensional arrays
|
|
*
|
|
* @param array $array Map of key and values
|
|
* @return string A json encoded string.
|
|
*/
|
|
protected function _implode(array $array) {
|
|
return json_encode($array);
|
|
}
|
|
|
|
/**
|
|
* Explode method to return array from string set in CookieComponent::_implode()
|
|
* Maintains reading backwards compatibility with 1.x CookieComponent::_implode().
|
|
*
|
|
* @param string $string A string containing JSON encoded data, or a bare string.
|
|
* @return string|array Map of key and values
|
|
*/
|
|
protected function _explode($string) {
|
|
$first = substr($string, 0, 1);
|
|
if ($first === '{' || $first === '[') {
|
|
$ret = json_decode($string, true);
|
|
return ($ret !== null) ? $ret : $string;
|
|
}
|
|
$array = array();
|
|
foreach (explode(',', $string) as $pair) {
|
|
$key = explode('|', $pair);
|
|
if (!isset($key[1])) {
|
|
return $key[0];
|
|
}
|
|
$array[$key[0]] = $key[1];
|
|
}
|
|
return $array;
|
|
}
|
|
}
|