cakephp2-php8/lib/Cake/Controller/Component/AuthComponent.php
Iñigo In The Cloud 2c112095a9 Issue #9040 - Auth saving json in Auth.redirect
AuthComponent is storing JSON or any other AJAX request URL into the session variable Auth.redirect used for login redirect if the AJAX request does not send the X-Requested-With:XMLHttpRequest header.

If you send an ajax request without that header and your request is not a (.json) it will store the URL anyway.
2016-06-27 14:15:05 -04:00

850 lines
25 KiB
PHP

<?php
/**
* Authentication component
*
* Manages user logins and permissions.
*
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (http://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. (http://cakefoundation.org)
* @link http://cakephp.org CakePHP(tm) Project
* @package Cake.Controller.Component
* @since CakePHP(tm) v 0.10.0.1076
* @license http://www.opensource.org/licenses/mit-license.php MIT License
*/
App::uses('Component', 'Controller');
App::uses('Router', 'Routing');
App::uses('Security', 'Utility');
App::uses('Debugger', 'Utility');
App::uses('Hash', 'Utility');
App::uses('CakeSession', 'Model/Datasource');
App::uses('BaseAuthorize', 'Controller/Component/Auth');
App::uses('BaseAuthenticate', 'Controller/Component/Auth');
App::uses('CakeEvent', 'Event');
/**
* Authentication control component class
*
* Binds access control with user authentication and session management.
*
* @package Cake.Controller.Component
* @link http://book.cakephp.org/2.0/en/core-libraries/components/authentication.html
*/
class AuthComponent extends Component {
/**
* Constant for 'all'
*
* @var string
*/
const ALL = 'all';
/**
* Other components utilized by AuthComponent
*
* @var array
*/
public $components = array('Session', 'Flash', 'RequestHandler');
/**
* An array of authentication objects to use for authenticating users. You can configure
* multiple adapters and they will be checked sequentially when users are identified.
*
* ```
* $this->Auth->authenticate = array(
* 'Form' => array(
* 'userModel' => 'Users.User'
* )
* );
* ```
*
* Using the class name without 'Authenticate' as the key, you can pass in an array of settings for each
* authentication object. Additionally you can define settings that should be set to all authentications objects
* using the 'all' key:
*
* ```
* $this->Auth->authenticate = array(
* 'all' => array(
* 'userModel' => 'Users.User',
* 'scope' => array('User.active' => 1)
* ),
* 'Form',
* 'Basic'
* );
* ```
*
* You can also use AuthComponent::ALL instead of the string 'all'.
*
* @var array
* @link http://book.cakephp.org/2.0/en/core-libraries/components/authentication.html
*/
public $authenticate = array('Form');
/**
* Objects that will be used for authentication checks.
*
* @var BaseAuthenticate[]
*/
protected $_authenticateObjects = array();
/**
* An array of authorization objects to use for authorizing users. You can configure
* multiple adapters and they will be checked sequentially when authorization checks are done.
*
* ```
* $this->Auth->authorize = array(
* 'Crud' => array(
* 'actionPath' => 'controllers/'
* )
* );
* ```
*
* Using the class name without 'Authorize' as the key, you can pass in an array of settings for each
* authorization object. Additionally you can define settings that should be set to all authorization objects
* using the 'all' key:
*
* ```
* $this->Auth->authorize = array(
* 'all' => array(
* 'actionPath' => 'controllers/'
* ),
* 'Crud',
* 'CustomAuth'
* );
* ```
*
* You can also use AuthComponent::ALL instead of the string 'all'
*
* @var mixed
* @link http://book.cakephp.org/2.0/en/core-libraries/components/authentication.html#authorization
*/
public $authorize = false;
/**
* Objects that will be used for authorization checks.
*
* @var BaseAuthorize[]
*/
protected $_authorizeObjects = array();
/**
* The name of an optional view element to render when an Ajax request is made
* with an invalid or expired session
*
* @var string
*/
public $ajaxLogin = null;
/**
* Settings to use when Auth needs to do a flash message with SessionComponent::setFlash().
* Available keys are:
*
* - `element` - The element to use, defaults to 'default'.
* - `key` - The key to use, defaults to 'auth'
* - `params` - The array of additional params to use, defaults to array()
*
* @var array
*/
public $flash = array(
'element' => 'default',
'key' => 'auth',
'params' => array()
);
/**
* The session key name where the record of the current user is stored. Default
* key is "Auth.User". If you are using only stateless authenticators set this
* to false to ensure session is not started.
*
* @var string
*/
public static $sessionKey = 'Auth.User';
/**
* The current user, used for stateless authentication when
* sessions are not available.
*
* @var array
*/
protected static $_user = array();
/**
* A URL (defined as a string or array) to the controller action that handles
* logins. Defaults to `/users/login`.
*
* @var mixed
*/
public $loginAction = array(
'controller' => 'users',
'action' => 'login',
'plugin' => null
);
/**
* Normally, if a user is redirected to the $loginAction page, the location they
* were redirected from will be stored in the session so that they can be
* redirected back after a successful login. If this session value is not
* set, redirectUrl() method will return the URL specified in $loginRedirect.
*
* @var mixed
* @link http://book.cakephp.org/2.0/en/core-libraries/components/authentication.html#AuthComponent::$loginRedirect
*/
public $loginRedirect = null;
/**
* The default action to redirect to after the user is logged out. While AuthComponent does
* not handle post-logout redirection, a redirect URL will be returned from AuthComponent::logout().
* Defaults to AuthComponent::$loginAction.
*
* @var mixed
* @see AuthComponent::$loginAction
* @see AuthComponent::logout()
*/
public $logoutRedirect = null;
/**
* Error to display when user attempts to access an object or action to which they do not have
* access.
*
* @var string|bool
* @link http://book.cakephp.org/2.0/en/core-libraries/components/authentication.html#AuthComponent::$authError
*/
public $authError = null;
/**
* Controls handling of unauthorized access.
* - For default value `true` unauthorized user is redirected to the referrer URL
* or AuthComponent::$loginRedirect or '/'.
* - If set to a string or array the value is used as a URL to redirect to.
* - If set to false a ForbiddenException exception is thrown instead of redirecting.
*
* @var mixed
*/
public $unauthorizedRedirect = true;
/**
* Controller actions for which user validation is not required.
*
* @var array
* @see AuthComponent::allow()
*/
public $allowedActions = array();
/**
* Request object
*
* @var CakeRequest
*/
public $request;
/**
* Response object
*
* @var CakeResponse
*/
public $response;
/**
* Method list for bound controller.
*
* @var array
*/
protected $_methods = array();
/**
* Initializes AuthComponent for use in the controller.
*
* @param Controller $controller A reference to the instantiating controller object
* @return void
*/
public function initialize(Controller $controller) {
$this->request = $controller->request;
$this->response = $controller->response;
$this->_methods = $controller->methods;
if (Configure::read('debug') > 0) {
Debugger::checkSecurityKeys();
}
}
/**
* Main execution method. Handles redirecting of invalid users, and processing
* of login form data.
*
* @param Controller $controller A reference to the instantiating controller object
* @return bool
*/
public function startup(Controller $controller) {
$methods = array_flip(array_map('strtolower', $controller->methods));
$action = strtolower($controller->request->params['action']);
$isMissingAction = (
$controller->scaffold === false &&
!isset($methods[$action])
);
if ($isMissingAction) {
return true;
}
if (!$this->_setDefaults()) {
return false;
}
if ($this->_isAllowed($controller)) {
return true;
}
if (!$this->_getUser()) {
return $this->_unauthenticated($controller);
}
if ($this->_isLoginAction($controller) ||
empty($this->authorize) ||
$this->isAuthorized($this->user())
) {
return true;
}
return $this->_unauthorized($controller);
}
/**
* Checks whether current action is accessible without authentication.
*
* @param Controller $controller A reference to the instantiating controller object
* @return bool True if action is accessible without authentication else false
*/
protected function _isAllowed(Controller $controller) {
$action = strtolower($controller->request->params['action']);
if (in_array($action, array_map('strtolower', $this->allowedActions))) {
return true;
}
return false;
}
/**
* Handles unauthenticated access attempt. First the `unathenticated()` method
* of the last authenticator in the chain will be called. The authenticator can
* handle sending response or redirection as appropriate and return `true` to
* indicate no furthur action is necessary. If authenticator returns null this
* method redirects user to login action. If it's an ajax request and
* $ajaxLogin is specified that element is rendered else a 403 http status code
* is returned.
*
* @param Controller $controller A reference to the controller object.
* @return bool True if current action is login action else false.
*/
protected function _unauthenticated(Controller $controller) {
if (empty($this->_authenticateObjects)) {
$this->constructAuthenticate();
}
$auth = $this->_authenticateObjects[count($this->_authenticateObjects) - 1];
if ($auth->unauthenticated($this->request, $this->response)) {
return false;
}
if ($this->_isLoginAction($controller)) {
if (empty($controller->request->data)) {
if (!$this->Session->check('Auth.redirect') && env('HTTP_REFERER')) {
$this->Session->write('Auth.redirect', $controller->referer(null, true));
}
}
return true;
}
if (!$controller->request->is('ajax') && !$controller->request->is('json')) {
$this->flash($this->authError);
$this->Session->write('Auth.redirect', $controller->request->here(false));
$controller->redirect($this->loginAction);
return false;
}
if (!empty($this->ajaxLogin)) {
$controller->response->statusCode(403);
$controller->viewPath = 'Elements';
$response = $controller->render($this->ajaxLogin, $this->RequestHandler->ajaxLayout);
$response->send();
$this->_stop();
return false;
}
$controller->response->statusCode(403);
$controller->response->send();
$this->_stop();
return false;
}
/**
* Normalizes $loginAction and checks if current request URL is same as login action.
*
* @param Controller $controller A reference to the controller object.
* @return bool True if current action is login action else false.
*/
protected function _isLoginAction(Controller $controller) {
$url = '';
if (isset($controller->request->url)) {
$url = $controller->request->url;
}
$url = Router::normalize($url);
$loginAction = Router::normalize($this->loginAction);
return $loginAction === $url;
}
/**
* Handle unauthorized access attempt
*
* @param Controller $controller A reference to the controller object
* @return bool Returns false
* @throws ForbiddenException
* @see AuthComponent::$unauthorizedRedirect
*/
protected function _unauthorized(Controller $controller) {
if ($this->unauthorizedRedirect === false) {
throw new ForbiddenException($this->authError);
}
$this->flash($this->authError);
if ($this->unauthorizedRedirect === true) {
$default = '/';
if (!empty($this->loginRedirect)) {
$default = $this->loginRedirect;
}
$url = $controller->referer($default, true);
} else {
$url = $this->unauthorizedRedirect;
}
$controller->redirect($url);
return false;
}
/**
* Attempts to introspect the correct values for object properties.
*
* @return bool True
*/
protected function _setDefaults() {
$defaults = array(
'logoutRedirect' => $this->loginAction,
'authError' => __d('cake', 'You are not authorized to access that location.')
);
foreach ($defaults as $key => $value) {
if (!isset($this->{$key}) || $this->{$key} === true) {
$this->{$key} = $value;
}
}
return true;
}
/**
* Check if the provided user is authorized for the request.
*
* Uses the configured Authorization adapters to check whether or not a user is authorized.
* Each adapter will be checked in sequence, if any of them return true, then the user will
* be authorized for the request.
*
* @param array|null $user The user to check the authorization of. If empty the user in the session will be used.
* @param CakeRequest|null $request The request to authenticate for. If empty, the current request will be used.
* @return bool True if $user is authorized, otherwise false
*/
public function isAuthorized($user = null, CakeRequest $request = null) {
if (empty($user) && !$this->user()) {
return false;
}
if (empty($user)) {
$user = $this->user();
}
if (empty($request)) {
$request = $this->request;
}
if (empty($this->_authorizeObjects)) {
$this->constructAuthorize();
}
foreach ($this->_authorizeObjects as $authorizer) {
if ($authorizer->authorize($user, $request) === true) {
return true;
}
}
return false;
}
/**
* Loads the authorization objects configured.
*
* @return mixed Either null when authorize is empty, or the loaded authorization objects.
* @throws CakeException
*/
public function constructAuthorize() {
if (empty($this->authorize)) {
return null;
}
$this->_authorizeObjects = array();
$config = Hash::normalize((array)$this->authorize);
$global = array();
if (isset($config[AuthComponent::ALL])) {
$global = $config[AuthComponent::ALL];
unset($config[AuthComponent::ALL]);
}
foreach ($config as $class => $settings) {
list($plugin, $class) = pluginSplit($class, true);
$className = $class . 'Authorize';
App::uses($className, $plugin . 'Controller/Component/Auth');
if (!class_exists($className)) {
throw new CakeException(__d('cake_dev', 'Authorization adapter "%s" was not found.', $class));
}
if (!method_exists($className, 'authorize')) {
throw new CakeException(__d('cake_dev', 'Authorization objects must implement an %s method.', 'authorize()'));
}
$settings = array_merge($global, (array)$settings);
$this->_authorizeObjects[] = new $className($this->_Collection, $settings);
}
return $this->_authorizeObjects;
}
/**
* Takes a list of actions in the current controller for which authentication is not required, or
* no parameters to allow all actions.
*
* You can use allow with either an array, or var args.
*
* `$this->Auth->allow(array('edit', 'add'));` or
* `$this->Auth->allow('edit', 'add');` or
* `$this->Auth->allow();` to allow all actions
*
* @param string|array|null $action Controller action name or array of actions
* @return void
* @link http://book.cakephp.org/2.0/en/core-libraries/components/authentication.html#making-actions-public
*/
public function allow($action = null) {
$args = func_get_args();
if (empty($args) || $action === null) {
$this->allowedActions = $this->_methods;
return;
}
if (isset($args[0]) && is_array($args[0])) {
$args = $args[0];
}
$this->allowedActions = array_merge($this->allowedActions, $args);
}
/**
* Removes items from the list of allowed/no authentication required actions.
*
* You can use deny with either an array, or var args.
*
* `$this->Auth->deny(array('edit', 'add'));` or
* `$this->Auth->deny('edit', 'add');` or
* `$this->Auth->deny();` to remove all items from the allowed list
*
* @param string|array|null $action Controller action name or array of actions
* @return void
* @see AuthComponent::allow()
* @link http://book.cakephp.org/2.0/en/core-libraries/components/authentication.html#making-actions-require-authorization
*/
public function deny($action = null) {
$args = func_get_args();
if (empty($args) || $action === null) {
$this->allowedActions = array();
return;
}
if (isset($args[0]) && is_array($args[0])) {
$args = $args[0];
}
foreach ($args as $arg) {
$i = array_search($arg, $this->allowedActions);
if (is_int($i)) {
unset($this->allowedActions[$i]);
}
}
$this->allowedActions = array_values($this->allowedActions);
}
/**
* Maps action names to CRUD operations.
*
* Used for controller-based authentication. Make sure
* to configure the authorize property before calling this method. As it delegates $map to all the
* attached authorize objects.
*
* @param array $map Actions to map
* @return array
* @see BaseAuthorize::mapActions()
* @link http://book.cakephp.org/2.0/en/core-libraries/components/authentication.html#mapping-actions-when-using-crudauthorize
* @deprecated 3.0.0 Map actions using `actionMap` config key on authorize objects instead
*/
public function mapActions($map = array()) {
if (empty($this->_authorizeObjects)) {
$this->constructAuthorize();
}
$mappedActions = array();
foreach ($this->_authorizeObjects as $auth) {
$mappedActions = Hash::merge($mappedActions, $auth->mapActions($map));
}
if (empty($map)) {
return $mappedActions;
}
return array();
}
/**
* Log a user in.
*
* If a $user is provided that data will be stored as the logged in user. If `$user` is empty or not
* specified, the request will be used to identify a user. If the identification was successful,
* the user record is written to the session key specified in AuthComponent::$sessionKey. Logging in
* will also change the session id in order to help mitigate session replays.
*
* @param array|null $user Either an array of user data, or null to identify a user using the current request.
* @return bool True on login success, false on failure
* @link http://book.cakephp.org/2.0/en/core-libraries/components/authentication.html#identifying-users-and-logging-them-in
*/
public function login($user = null) {
$this->_setDefaults();
if (empty($user)) {
$user = $this->identify($this->request, $this->response);
}
if ($user) {
$this->Session->renew();
$this->Session->write(static::$sessionKey, $user);
$event = new CakeEvent('Auth.afterIdentify', $this, array('user' => $user));
$this->_Collection->getController()->getEventManager()->dispatch($event);
}
return (bool)$this->user();
}
/**
* Log a user out.
*
* Returns the logout action to redirect to. Triggers the logout() method of
* all the authenticate objects, so they can perform custom logout logic.
* AuthComponent will remove the session data, so there is no need to do that
* in an authentication object. Logging out will also renew the session id.
* This helps mitigate issues with session replays.
*
* @return string AuthComponent::$logoutRedirect
* @see AuthComponent::$logoutRedirect
* @link http://book.cakephp.org/2.0/en/core-libraries/components/authentication.html#logging-users-out
*/
public function logout() {
$this->_setDefaults();
if (empty($this->_authenticateObjects)) {
$this->constructAuthenticate();
}
$user = $this->user();
foreach ($this->_authenticateObjects as $auth) {
$auth->logout($user);
}
$this->Session->delete(static::$sessionKey);
$this->Session->delete('Auth.redirect');
$this->Session->renew();
return Router::normalize($this->logoutRedirect);
}
/**
* Get the current user.
*
* Will prefer the static user cache over sessions. The static user
* cache is primarily used for stateless authentication. For stateful authentication,
* cookies + sessions will be used.
*
* @param string|null $key field to retrieve. Leave null to get entire User record
* @return mixed|null User record. or null if no user is logged in.
* @link http://book.cakephp.org/2.0/en/core-libraries/components/authentication.html#accessing-the-logged-in-user
*/
public static function user($key = null) {
if (!empty(static::$_user)) {
$user = static::$_user;
} elseif (static::$sessionKey && CakeSession::check(static::$sessionKey)) {
$user = CakeSession::read(static::$sessionKey);
} else {
return null;
}
if ($key === null) {
return $user;
}
return Hash::get($user, $key);
}
/**
* Similar to AuthComponent::user() except if the session user cannot be found, connected authentication
* objects will have their getUser() methods called. This lets stateless authentication methods function correctly.
*
* @return bool True if a user can be found, false if one cannot.
*/
protected function _getUser() {
$user = $this->user();
if ($user) {
$this->Session->delete('Auth.redirect');
return true;
}
if (empty($this->_authenticateObjects)) {
$this->constructAuthenticate();
}
foreach ($this->_authenticateObjects as $auth) {
$result = $auth->getUser($this->request);
if (!empty($result) && is_array($result)) {
static::$_user = $result;
return true;
}
}
return false;
}
/**
* Backwards compatible alias for AuthComponent::redirectUrl().
*
* @param string|array|null $url Optional URL to write as the login redirect URL.
* @return string Redirect URL
* @deprecated 3.0.0 Since 2.3.0, use AuthComponent::redirectUrl() instead
*/
public function redirect($url = null) {
return $this->redirectUrl($url);
}
/**
* Get the URL a user should be redirected to upon login.
*
* Pass a URL in to set the destination a user should be redirected to upon
* logging in.
*
* If no parameter is passed, gets the authentication redirect URL. The URL
* returned is as per following rules:
*
* - Returns the normalized URL from session Auth.redirect value if it is
* present and for the same domain the current app is running on.
* - If there is no session value and there is a $loginRedirect, the $loginRedirect
* value is returned.
* - If there is no session and no $loginRedirect, / is returned.
*
* @param string|array|null $url Optional URL to write as the login redirect URL.
* @return string Redirect URL
*/
public function redirectUrl($url = null) {
if ($url !== null) {
$redir = $url;
$this->Session->write('Auth.redirect', $redir);
} elseif ($this->Session->check('Auth.redirect')) {
$redir = $this->Session->read('Auth.redirect');
$this->Session->delete('Auth.redirect');
if (Router::normalize($redir) === Router::normalize($this->loginAction)) {
$redir = $this->loginRedirect;
}
} elseif ($this->loginRedirect) {
$redir = $this->loginRedirect;
} else {
$redir = '/';
}
if (is_array($redir)) {
return Router::url($redir + array('base' => false));
}
return $redir;
}
/**
* Use the configured authentication adapters, and attempt to identify the user
* by credentials contained in $request.
*
* @param CakeRequest $request The request that contains authentication data.
* @param CakeResponse $response The response
* @return array User record data, or false, if the user could not be identified.
*/
public function identify(CakeRequest $request, CakeResponse $response) {
if (empty($this->_authenticateObjects)) {
$this->constructAuthenticate();
}
foreach ($this->_authenticateObjects as $auth) {
$result = $auth->authenticate($request, $response);
if (!empty($result) && is_array($result)) {
return $result;
}
}
return false;
}
/**
* Loads the configured authentication objects.
*
* @return mixed Either null on empty authenticate value, or an array of loaded objects.
* @throws CakeException
*/
public function constructAuthenticate() {
if (empty($this->authenticate)) {
return null;
}
$this->_authenticateObjects = array();
$config = Hash::normalize((array)$this->authenticate);
$global = array();
if (isset($config[AuthComponent::ALL])) {
$global = $config[AuthComponent::ALL];
unset($config[AuthComponent::ALL]);
}
foreach ($config as $class => $settings) {
if (!empty($settings['className'])) {
$class = $settings['className'];
unset($settings['className']);
}
list($plugin, $class) = pluginSplit($class, true);
$className = $class . 'Authenticate';
App::uses($className, $plugin . 'Controller/Component/Auth');
if (!class_exists($className)) {
throw new CakeException(__d('cake_dev', 'Authentication adapter "%s" was not found.', $class));
}
if (!method_exists($className, 'authenticate')) {
throw new CakeException(__d('cake_dev', 'Authentication objects must implement an %s method.', 'authenticate()'));
}
$settings = array_merge($global, (array)$settings);
$auth = new $className($this->_Collection, $settings);
$this->_Collection->getController()->getEventManager()->attach($auth);
$this->_authenticateObjects[] = $auth;
}
return $this->_authenticateObjects;
}
/**
* Hash a password with the application's salt value (as defined with Configure::write('Security.salt');
*
* This method is intended as a convenience wrapper for Security::hash(). If you want to use
* a hashing/encryption system not supported by that method, do not use this method.
*
* @param string $password Password to hash
* @return string Hashed password
* @deprecated 3.0.0 Since 2.4. Use Security::hash() directly or a password hasher object.
*/
public static function password($password) {
return Security::hash($password, null, true);
}
/**
* Check whether or not the current user has data in the session, and is considered logged in.
*
* @return bool true if the user is logged in, false otherwise
* @deprecated 3.0.0 Since 2.5. Use AuthComponent::user() directly.
*/
public function loggedIn() {
return (bool)$this->user();
}
/**
* Set a flash message. Uses the Session component, and values from AuthComponent::$flash.
*
* @param string $message The message to set.
* @return void
*/
public function flash($message) {
if ($message === false) {
return;
}
$this->Flash->set($message, $this->flash);
}
}