Subversion Repositories SmartDukaan

<?php
/**
 * 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
 * @license       http://www.opensource.org/licenses/mit-license.php MIT License
 */

App::uses('BaseAuthorize', 'Controller/Component/Auth');
App::uses('Router', 'Routing');

/**
 * An authorization adapter for AuthComponent. Provides the ability to authorize using CRUD mappings.
 * CRUD mappings allow you to translate controller actions into *C*reate *R*ead *U*pdate *D*elete actions.
 * This is then checked in the AclComponent as specific permissions.
 *
 * For example, taking `/posts/index` as the current request. The default mapping for `index`, is a `read` permission
 * check. The Acl check would then be for the `posts` controller with the `read` permission. This allows you
 * to create permission systems that focus more on what is being done to resources, rather than the specific actions
 * being visited.
 *
 * @package       Cake.Controller.Component.Auth
 * @since 2.0
 * @see AuthComponent::$authenticate
 * @see AclComponent::check()
 */
class CrudAuthorize extends BaseAuthorize {

/**
 * Sets up additional actionMap values that match the configured `Routing.prefixes`.
 *
 * @param ComponentCollection $collection The component collection from the controller.
 * @param string $settings An array of settings. This class does not use any settings.
 */
        public function __construct(ComponentCollection $collection, $settings = array()) {
                parent::__construct($collection, $settings);
                $this->_setPrefixMappings();
        }

/**
 * sets the crud mappings for prefix routes.
 *
 * @return void
 */
        protected function _setPrefixMappings() {
                $crud = array('create', 'read', 'update', 'delete');
                $map = array_combine($crud, $crud);

                $prefixes = Router::prefixes();
                if (!empty($prefixes)) {
                        foreach ($prefixes as $prefix) {
                                $map = array_merge($map, array(
                                        $prefix . '_index' => 'read',
                                        $prefix . '_add' => 'create',
                                        $prefix . '_edit' => 'update',
                                        $prefix . '_view' => 'read',
                                        $prefix . '_remove' => 'delete',
                                        $prefix . '_create' => 'create',
                                        $prefix . '_read' => 'read',
                                        $prefix . '_update' => 'update',
                                        $prefix . '_delete' => 'delete'
                                ));
                        }
                }
                $this->mapActions($map);
        }

/**
 * Authorize a user using the mapped actions and the AclComponent.
 *
 * @param array $user The user to authorize
 * @param CakeRequest $request The request needing authorization.
 * @return bool
 */
        public function authorize($user, CakeRequest $request) {
                if (!isset($this->settings['actionMap'][$request->params['action']])) {
                        trigger_error(__d('cake_dev',
                                'CrudAuthorize::authorize() - Attempted access of un-mapped action "%1$s" in controller "%2$s"',
                                $request->action,
                                $request->controller
                                ),
                                E_USER_WARNING
                        );
                        return false;
                }
                $user = array($this->settings['userModel'] => $user);
                $Acl = $this->_Collection->load('Acl');
                return $Acl->check(
                        $user,
                        $this->action($request, ':controller'),
                        $this->settings['actionMap'][$request->params['action']]
                );
        }

}