mirror of
https://github.com/kamilwylegala/cakephp2-php8.git
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293 lines
8.8 KiB
PHP
293 lines
8.8 KiB
PHP
<?php
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/**
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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* Copyright 2005-2011, Cake Software Foundation, Inc. (http://cakefoundation.org)
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*
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* Licensed under The MIT License
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright 2005-2011, 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
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* @since CakePHP(tm) v 0.10.0.1076
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* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
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*/
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App::uses('AclInterface', 'Controller/Component/Acl');
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/**
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* DbAcl implements an ACL control system in the database. ARO's and ACO's are
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* structured into trees and a linking table is used to define permissions. You
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* can install the schema for DbAcl with the Schema Shell.
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*
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* `$aco` and `$aro` parameters can be slash delimited paths to tree nodes.
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*
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* eg. `controllers/Users/edit`
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*
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* Would point to a tree structure like
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*
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* {{{
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* controllers
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* Users
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* edit
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* }}}
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*
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* @package Cake.Controller.Component
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*/
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class DbAcl extends Object implements AclInterface {
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/**
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* Constructor
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*
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*/
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public function __construct() {
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parent::__construct();
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App::uses('AclNode', 'Model');
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$this->Aro = ClassRegistry::init(array('class' => 'Aro', 'alias' => 'Aro'));
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$this->Aco = ClassRegistry::init(array('class' => 'Aco', 'alias' => 'Aco'));
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}
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/**
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* Initializes the containing component and sets the Aro/Aco objects to it.
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*
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* @param AclComponent $component
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* @return void
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*/
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public function initialize($component) {
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$component->Aro = $this->Aro;
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$component->Aco = $this->Aco;
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}
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/**
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* Checks if the given $aro has access to action $action in $aco
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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 $action Action (defaults to *)
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* @return boolean Success (true if ARO has access to action in ACO, false otherwise)
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* @link http://book.cakephp.org/2.0/en/core-libraries/components/access-control-lists.html#checking-permissions-the-acl-component
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*/
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public function check($aro, $aco, $action = "*") {
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if ($aro == null || $aco == null) {
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return false;
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}
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$permKeys = $this->_getAcoKeys($this->Aro->Permission->schema());
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$aroPath = $this->Aro->node($aro);
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$acoPath = $this->Aco->node($aco);
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if (empty($aroPath) || empty($acoPath)) {
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trigger_error(__d('cake_dev', "DbAcl::check() - Failed ARO/ACO node lookup in permissions check. Node references:\nAro: ") . print_r($aro, true) . "\nAco: " . print_r($aco, true), E_USER_WARNING);
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return false;
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}
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if ($acoPath == null || $acoPath == array()) {
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trigger_error(__d('cake_dev', "DbAcl::check() - Failed ACO node lookup in permissions check. Node references:\nAro: ") . print_r($aro, true) . "\nAco: " . print_r($aco, true), E_USER_WARNING);
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return false;
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}
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if ($action != '*' && !in_array('_' . $action, $permKeys)) {
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trigger_error(__d('cake_dev', "ACO permissions key %s does not exist in DbAcl::check()", $action), E_USER_NOTICE);
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return false;
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}
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$inherited = array();
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$acoIDs = Set::extract($acoPath, '{n}.' . $this->Aco->alias . '.id');
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$count = count($aroPath);
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for ($i = 0 ; $i < $count; $i++) {
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$permAlias = $this->Aro->Permission->alias;
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$perms = $this->Aro->Permission->find('all', array(
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'conditions' => array(
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"{$permAlias}.aro_id" => $aroPath[$i][$this->Aro->alias]['id'],
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"{$permAlias}.aco_id" => $acoIDs
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),
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'order' => array($this->Aco->alias . '.lft' => 'desc'),
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'recursive' => 0
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));
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if (empty($perms)) {
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continue;
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} else {
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$perms = Set::extract($perms, '{n}.' . $this->Aro->Permission->alias);
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foreach ($perms as $perm) {
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if ($action == '*') {
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foreach ($permKeys as $key) {
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if (!empty($perm)) {
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if ($perm[$key] == -1) {
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return false;
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} elseif ($perm[$key] == 1) {
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$inherited[$key] = 1;
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}
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}
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}
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if (count($inherited) === count($permKeys)) {
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return true;
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}
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} else {
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switch ($perm['_' . $action]) {
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case -1:
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return false;
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case 0:
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continue;
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break;
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case 1:
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return true;
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break;
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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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* Allow $aro to have access to action $actions in $aco
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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 $actions Action (defaults to *)
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* @param integer $value Value to indicate access type (1 to give access, -1 to deny, 0 to inherit)
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* @return boolean Success
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* @link http://book.cakephp.org/2.0/en/core-libraries/components/access-control-lists.html#assigning-permissions
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*/
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public function allow($aro, $aco, $actions = "*", $value = 1) {
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$perms = $this->getAclLink($aro, $aco);
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$permKeys = $this->_getAcoKeys($this->Aro->Permission->schema());
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$save = array();
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if ($perms == false) {
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trigger_error(__d('cake_dev', 'DbAcl::allow() - Invalid node'), E_USER_WARNING);
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return false;
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}
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if (isset($perms[0])) {
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$save = $perms[0][$this->Aro->Permission->alias];
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}
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if ($actions == "*") {
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$permKeys = $this->_getAcoKeys($this->Aro->Permission->schema());
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$save = array_combine($permKeys, array_pad(array(), count($permKeys), $value));
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} else {
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if (!is_array($actions)) {
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$actions = array('_' . $actions);
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}
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if (is_array($actions)) {
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foreach ($actions as $action) {
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if ($action{0} != '_') {
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$action = '_' . $action;
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}
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if (in_array($action, $permKeys)) {
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$save[$action] = $value;
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}
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}
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}
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}
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list($save['aro_id'], $save['aco_id']) = array($perms['aro'], $perms['aco']);
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if ($perms['link'] != null && !empty($perms['link'])) {
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$save['id'] = $perms['link'][0][$this->Aro->Permission->alias]['id'];
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} else {
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unset($save['id']);
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$this->Aro->Permission->id = null;
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}
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return ($this->Aro->Permission->save($save) !== false);
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}
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/**
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* Deny access for $aro to action $action in $aco
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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 $action Action (defaults to *)
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* @return boolean Success
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* @link http://book.cakephp.org/2.0/en/core-libraries/components/access-control-lists.html#assigning-permissions
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*/
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public function deny($aro, $aco, $action = "*") {
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return $this->allow($aro, $aco, $action, -1);
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}
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/**
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* Let access for $aro to action $action in $aco be inherited
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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 $action Action (defaults to *)
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* @return boolean Success
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*/
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public function inherit($aro, $aco, $action = "*") {
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return $this->allow($aro, $aco, $action, 0);
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}
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/**
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* Allow $aro to have access to action $actions in $aco
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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 $action Action (defaults to *)
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* @return boolean Success
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* @see allow()
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*/
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public function grant($aro, $aco, $action = "*") {
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return $this->allow($aro, $aco, $action);
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}
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/**
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* Deny access for $aro to action $action in $aco
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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 $action Action (defaults to *)
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* @return boolean Success
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* @see deny()
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*/
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public function revoke($aro, $aco, $action = "*") {
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return $this->deny($aro, $aco, $action);
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}
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/**
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* Get an array of access-control links between the given Aro and Aco
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*
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* @param string $aro ARO The requesting object identifier.
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* @param string $aco ACO The controlled object identifier.
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* @return array Indexed array with: 'aro', 'aco' and 'link'
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*/
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public function getAclLink($aro, $aco) {
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$obj = array();
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$obj['Aro'] = $this->Aro->node($aro);
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$obj['Aco'] = $this->Aco->node($aco);
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if (empty($obj['Aro']) || empty($obj['Aco'])) {
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return false;
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}
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return array(
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'aro' => Set::extract($obj, 'Aro.0.' . $this->Aro->alias . '.id'),
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'aco' => Set::extract($obj, 'Aco.0.' . $this->Aco->alias . '.id'),
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'link' => $this->Aro->Permission->find('all', array('conditions' => array(
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$this->Aro->Permission->alias . '.aro_id' => Set::extract($obj, 'Aro.0.' . $this->Aro->alias . '.id'),
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$this->Aro->Permission->alias . '.aco_id' => Set::extract($obj, 'Aco.0.' . $this->Aco->alias . '.id')
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)))
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);
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}
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/**
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* Get the keys used in an ACO
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*
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* @param array $keys Permission model info
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* @return array ACO keys
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*/
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protected function _getAcoKeys($keys) {
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$newKeys = array();
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$keys = array_keys($keys);
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foreach ($keys as $key) {
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if (!in_array($key, array('id', 'aro_id', 'aco_id'))) {
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$newKeys[] = $key;
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}
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}
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return $newKeys;
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}
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}
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