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<?php |
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declare(strict_types=1); |
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/** |
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* BEdita, API-first content management framework |
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* Copyright 2020 ChannelWeb Srl, Chialab Srl |
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* |
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* This file is part of BEdita: you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published |
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* by the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* See LICENSE.LGPL or <http://gnu.org/licenses/lgpl-3.0.html> for more details. |
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*/ |
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namespace App\Controller; |
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use BEdita\WebTools\Controller\ApiProxyTrait; |
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use Cake\Core\Configure; |
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use Cake\Event\EventInterface; |
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use Cake\Http\Exception\UnauthorizedException; |
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use Cake\Http\Response; |
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use Cake\Utility\Hash; |
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/** |
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* ApiController class. |
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* |
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* It proxies requests to BEdita API. |
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* The response will be the raw json response of the API itself. |
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* Links of API host is masked with manager host. |
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*/ |
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class ApiController extends AppController |
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{ |
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use ApiProxyTrait; |
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/** |
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* @inheritDoc |
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*/ |
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public function beforeFilter(EventInterface $event): ?Response |
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{ |
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parent::beforeFilter($event); |
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if (!$this->allowed()) { |
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throw new UnauthorizedException(__('You are not authorized to access this resource')); |
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} |
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$this->Security->setConfig('unlockedActions', ['post', 'patch', 'delete']); |
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return null; |
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} |
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/** |
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* Check if the request is allowed. |
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* |
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* @return bool |
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*/ |
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protected function allowed(): bool |
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{ |
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// block requests from browser address bar |
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$sameOrigin = (string)Hash::get((array)$this->request->getHeader('Sec-Fetch-Site'), 0) === 'same-origin'; |
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$noReferer = empty((array)$this->request->getHeader('Referer')); |
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$isNavigate = in_array('navigate', (array)$this->request->getHeader('Sec-Fetch-Mode')); |
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if (!$sameOrigin || $noReferer || $isNavigate) { |
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return false; |
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} |
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/** @var \Authentication\Identity|null $user */ |
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$user = $this->Authentication->getIdentity(); |
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$roles = empty($user) ? [] : (array)$user->get('roles'); |
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if (empty($roles)) { |
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return false; |
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} |
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if (in_array('admin', $roles)) { |
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return true; |
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} |
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$method = $this->request->getMethod(); |
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$action = $this->request->getParam('pass')[0] ?? null; |
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$action = $action != null && strpos($action, '/') > 0 ? explode('/', $action)[0] : $action; |
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$blockedMethods = (array)Configure::read('ApiProxy.blocked', [ |
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'objects' => ['GET', 'POST', 'PATCH', 'DELETE'], |
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'users' => ['GET', 'POST', 'PATCH', 'DELETE'], |
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]); |
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$blocked = in_array($method, $blockedMethods[$action] ?? []); |
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$modules = $this->viewBuilder()->getVar('modules'); |
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$modules = array_values($modules); |
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$modules = array_merge( |
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(array)Hash::combine($modules, '{n}.name', '{n}.hints.allow'), |
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['history' => ['GET'], 'model' => ['GET']], |
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); |
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$allowedMethods = array_merge( |
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(array)Hash::get($modules, $action, []), |
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(array)Hash::get((array)Configure::read('ApiProxy.allowed'), $action, []), |
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); |
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$allowed = in_array($method, $allowedMethods); |
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return $allowed && !$blocked; |
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} |
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} |
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bedita /
manager
