76 lines
2.4 KiB
PHP
76 lines
2.4 KiB
PHP
<?php
|
|
declare(strict_types=1);
|
|
/**
|
|
* @copyright Copyright (c) 2016, ownCloud, Inc.
|
|
*
|
|
* @author Lukas Reschke <lukas@statuscode.ch>
|
|
*
|
|
* @license AGPL-3.0
|
|
*
|
|
* This code is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License, version 3,
|
|
* as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License, version 3,
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>
|
|
*
|
|
*/
|
|
|
|
namespace OC\Security\CSP;
|
|
|
|
use OCP\AppFramework\Http\ContentSecurityPolicy;
|
|
use OCP\AppFramework\Http\EmptyContentSecurityPolicy;
|
|
use OCP\Security\IContentSecurityPolicyManager;
|
|
|
|
class ContentSecurityPolicyManager implements IContentSecurityPolicyManager {
|
|
/** @var ContentSecurityPolicy[] */
|
|
private $policies = [];
|
|
|
|
/** {@inheritdoc} */
|
|
public function addDefaultPolicy(EmptyContentSecurityPolicy $policy) {
|
|
$this->policies[] = $policy;
|
|
}
|
|
|
|
/**
|
|
* Get the configured default policy. This is not in the public namespace
|
|
* as it is only supposed to be used by core itself.
|
|
*
|
|
* @return ContentSecurityPolicy
|
|
*/
|
|
public function getDefaultPolicy(): ContentSecurityPolicy {
|
|
$defaultPolicy = new \OC\Security\CSP\ContentSecurityPolicy();
|
|
foreach($this->policies as $policy) {
|
|
$defaultPolicy = $this->mergePolicies($defaultPolicy, $policy);
|
|
}
|
|
return $defaultPolicy;
|
|
}
|
|
|
|
/**
|
|
* Merges the first given policy with the second one
|
|
*
|
|
* @param ContentSecurityPolicy $defaultPolicy
|
|
* @param EmptyContentSecurityPolicy $originalPolicy
|
|
* @return ContentSecurityPolicy
|
|
*/
|
|
public function mergePolicies(ContentSecurityPolicy $defaultPolicy,
|
|
EmptyContentSecurityPolicy $originalPolicy): ContentSecurityPolicy {
|
|
foreach((object)(array)$originalPolicy as $name => $value) {
|
|
$setter = 'set'.ucfirst($name);
|
|
if(\is_array($value)) {
|
|
$getter = 'get'.ucfirst($name);
|
|
$currentValues = \is_array($defaultPolicy->$getter()) ? $defaultPolicy->$getter() : [];
|
|
$defaultPolicy->$setter(array_values(array_unique(array_merge($currentValues, $value))));
|
|
} elseif (\is_bool($value)) {
|
|
$defaultPolicy->$setter($value);
|
|
}
|
|
}
|
|
|
|
return $defaultPolicy;
|
|
}
|
|
}
|