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pictcode / lib / Cake / Controller / Component / Acl / IniAcl.php @ 0b1b8047

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<?php
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/**
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 * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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 * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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 *
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 * Licensed under The MIT License
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 * For full copyright and license information, please see the LICENSE.txt
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 * Redistributions of files must retain the above copyright notice.
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 *
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 * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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 * @link          http://cakephp.org CakePHP(tm) Project
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 * @package       Cake.Controller.Component.Acl
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 * @since         CakePHP(tm) v 0.10.0.1076
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 * @license       http://www.opensource.org/licenses/mit-license.php MIT License
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 */
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App::uses('AclInterface', 'Controller/Component/Acl');
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/**
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 * IniAcl implements an access control system using an INI file. An example
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 * of the ini file used can be found in /config/acl.ini.php.
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 *
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 * @package       Cake.Controller.Component.Acl
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 */
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class IniAcl extends Object implements AclInterface {
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/**
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 * Array with configuration, parsed from ini file
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 *
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 * @var array
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 */
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        public $config = null;
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/**
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 * The Hash::extract() path to the user/aro identifier in the
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 * acl.ini file. This path will be used to extract the string
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 * representation of a user used in the ini file.
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 *
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 * @var string
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 */
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        public $userPath = 'User.username';
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/**
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 * Initialize method
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 *
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 * @param Component $component The AclComponent instance.
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 * @return void
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 */
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        public function initialize(Component $component) {
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        }
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/**
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 * No op method, allow cannot be done with IniAcl
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 *
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 * @param string $aro ARO The requesting object identifier.
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 * @param string $aco ACO The controlled object identifier.
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 * @param string $action Action (defaults to *)
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 * @return bool Success
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 */
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        public function allow($aro, $aco, $action = "*") {
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        }
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/**
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 * No op method, deny cannot be done with IniAcl
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 *
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 * @param string $aro ARO The requesting object identifier.
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 * @param string $aco ACO The controlled object identifier.
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 * @param string $action Action (defaults to *)
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 * @return bool Success
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 */
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        public function deny($aro, $aco, $action = "*") {
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        }
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/**
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 * No op method, inherit cannot be done with IniAcl
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 *
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 * @param string $aro ARO The requesting object identifier.
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 * @param string $aco ACO The controlled object identifier.
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 * @param string $action Action (defaults to *)
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 * @return bool Success
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 */
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        public function inherit($aro, $aco, $action = "*") {
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        }
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/**
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 * Main ACL check function. Checks to see if the ARO (access request object) has access to the
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 * ACO (access control object).Looks at the acl.ini.php file for permissions
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 * (see instructions in /config/acl.ini.php).
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 *
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 * @param string $aro ARO
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 * @param string $aco ACO
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 * @param string $action Action
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 * @return bool Success
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 */
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        public function check($aro, $aco, $action = null) {
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                if (!$this->config) {
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                        $this->config = $this->readConfigFile(APP . 'Config' . DS . 'acl.ini.php');
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                }
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                $aclConfig = $this->config;
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                if (is_array($aro)) {
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                        $aro = Hash::get($aro, $this->userPath);
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                }
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                if (isset($aclConfig[$aro]['deny'])) {
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                        $userDenies = $this->arrayTrim(explode(",", $aclConfig[$aro]['deny']));
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                        if (array_search($aco, $userDenies)) {
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                                return false;
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                        }
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                }
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                if (isset($aclConfig[$aro]['allow'])) {
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                        $userAllows = $this->arrayTrim(explode(",", $aclConfig[$aro]['allow']));
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                        if (array_search($aco, $userAllows)) {
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                                return true;
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                        }
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                }
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                if (isset($aclConfig[$aro]['groups'])) {
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                        $userGroups = $this->arrayTrim(explode(",", $aclConfig[$aro]['groups']));
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                        foreach ($userGroups as $group) {
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                                if (array_key_exists($group, $aclConfig)) {
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                                        if (isset($aclConfig[$group]['deny'])) {
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                                                $groupDenies = $this->arrayTrim(explode(",", $aclConfig[$group]['deny']));
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                                                if (array_search($aco, $groupDenies)) {
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                                                        return false;
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                                                }
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                                        }
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                                        if (isset($aclConfig[$group]['allow'])) {
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                                                $groupAllows = $this->arrayTrim(explode(",", $aclConfig[$group]['allow']));
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                                                if (array_search($aco, $groupAllows)) {
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                                                        return true;
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                                                }
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                                        }
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                                }
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                        }
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                }
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                return false;
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        }
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/**
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 * Parses an INI file and returns an array that reflects the
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 * INI file's section structure. Double-quote friendly.
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 *
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 * @param string $filename File
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 * @return array INI section structure
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 */
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        public function readConfigFile($filename) {
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                App::uses('IniReader', 'Configure');
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                $iniFile = new IniReader(dirname($filename) . DS);
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                return $iniFile->read(basename($filename));
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        }
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/**
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 * Removes trailing spaces on all array elements (to prepare for searching)
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 *
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 * @param array $array Array to trim
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 * @return array Trimmed array
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 */
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        public function arrayTrim($array) {
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                foreach ($array as $key => $value) {
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                        $array[$key] = trim($value);
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                }
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                array_unshift($array, "");
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                return $array;
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        }
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}