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Merge pull request #15730 from nextcloud/enh/14179/event_for_csp 

Add an event to edit the CSP
This commit is contained in:
Roeland Jago Douma 2019-07-09 10:59:15 +02:00 committed by GitHub
parent 5fdeacb75f 5ac857bcdc
commit 5cef8957b5
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GPG Key ID: 4AEE18F83AFDEB23
9 changed files with 167 additions and 6 deletions
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1
lib/composer/composer/autoload_classmap.php
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@ -373,6 +373,7 @@ return array(
'OCP\\Search\\PagedProvider' => $baseDir . '/lib/public/Search/PagedProvider.php',
'OCP\\Search\\Provider' => $baseDir . '/lib/public/Search/Provider.php',
'OCP\\Search\\Result' => $baseDir . '/lib/public/Search/Result.php',
'OCP\\Security\\CSP\\AddContentSecurityPolicyEvent' => $baseDir . '/lib/public/Security/CSP/AddContentSecurityPolicyEvent.php',
'OCP\\Security\\IContentSecurityPolicyManager' => $baseDir . '/lib/public/Security/IContentSecurityPolicyManager.php',
'OCP\\Security\\ICredentialsManager' => $baseDir . '/lib/public/Security/ICredentialsManager.php',
'OCP\\Security\\ICrypto' => $baseDir . '/lib/public/Security/ICrypto.php',

1
lib/composer/composer/autoload_static.php
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@ -407,6 +407,7 @@ class ComposerStaticInit53792487c5a8370acc0b06b1a864ff4c
'OCP\\Search\\PagedProvider' => __DIR__ . '/../../..' . '/lib/public/Search/PagedProvider.php',
'OCP\\Search\\Provider' => __DIR__ . '/../../..' . '/lib/public/Search/Provider.php',
'OCP\\Search\\Result' => __DIR__ . '/../../..' . '/lib/public/Search/Result.php',
'OCP\\Security\\CSP\\AddContentSecurityPolicyEvent' => __DIR__ . '/../../..' . '/lib/public/Security/CSP/AddContentSecurityPolicyEvent.php',
'OCP\\Security\\IContentSecurityPolicyManager' => __DIR__ . '/../../..' . '/lib/public/Security/IContentSecurityPolicyManager.php',
'OCP\\Security\\ICredentialsManager' => __DIR__ . '/../../..' . '/lib/public/Security/ICredentialsManager.php',
'OCP\\Security\\ICrypto' => __DIR__ . '/../../..' . '/lib/public/Security/ICrypto.php',

12
lib/private/Security/CSP/ContentSecurityPolicyManager.php
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@ -25,12 +25,21 @@ namespace OC\Security\CSP;
use OCP\AppFramework\Http\ContentSecurityPolicy;
use OCP\AppFramework\Http\EmptyContentSecurityPolicy;
use OCP\EventDispatcher\IEventDispatcher;
use OCP\Security\CSP\AddContentSecurityPolicyEvent;
use OCP\Security\IContentSecurityPolicyManager;
class ContentSecurityPolicyManager implements IContentSecurityPolicyManager {
/** @var ContentSecurityPolicy[] */
private $policies = [];
/** @var IEventDispatcher */
private $dispatcher;
public function __construct(IEventDispatcher $dispatcher) {
$this->dispatcher = $dispatcher;
}
/** {@inheritdoc} */
public function addDefaultPolicy(EmptyContentSecurityPolicy $policy) {
$this->policies[] = $policy;
@ -43,6 +52,9 @@ class ContentSecurityPolicyManager implements IContentSecurityPolicyManager {
* @return ContentSecurityPolicy
*/
public function getDefaultPolicy(): ContentSecurityPolicy {
$event = new AddContentSecurityPolicyEvent($this);
$this->dispatcher->dispatch(AddContentSecurityPolicyEvent::class, $event);
$defaultPolicy = new \OC\Security\CSP\ContentSecurityPolicy();
foreach($this->policies as $policy) {
$defaultPolicy = $this->mergePolicies($defaultPolicy, $policy);

6
lib/private/Server.php
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@ -1030,10 +1030,8 @@ class Server extends ServerContainer implements IServerContainer {
$this->registerService(SessionStorage::class, function (Server $c) {
return new SessionStorage($c->getSession());
});
$this->registerService(\OCP\Security\IContentSecurityPolicyManager::class, function (Server $c) {
return new ContentSecurityPolicyManager();
});
$this->registerAlias('ContentSecurityPolicyManager', \OCP\Security\IContentSecurityPolicyManager::class);
$this->registerAlias(\OCP\Security\IContentSecurityPolicyManager::class, \OC\Security\CSP\ContentSecurityPolicyManager::class);
$this->registerAlias('ContentSecurityPolicyManager', \OC\Security\CSP\ContentSecurityPolicyManager::class);
$this->registerService('ContentSecurityPolicyNonceManager', function (Server $c) {
return new ContentSecurityPolicyNonceManager(

1
lib/public/IServerContainer.php
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@ -534,6 +534,7 @@ interface IServerContainer extends IContainer {
/**
* @return IContentSecurityPolicyManager
* @since 9.0.0
* @deprecated 17.0.0 Use the AddContentSecurityPolicyEvent
*/
public function getContentSecurityPolicyManager();

52
lib/public/Security/CSP/AddContentSecurityPolicyEvent.php Normal file
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@ -0,0 +1,52 @@
<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2019, Roeland Jago Douma <roeland@famdouma.nl>
*
* @author Roeland Jago Douma <roeland@famdouma.nl>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCP\Security\CSP;
use OC\Security\CSP\ContentSecurityPolicyManager;
use OCP\AppFramework\Http\EmptyContentSecurityPolicy;
use OCP\EventDispatcher\Event;
/**
* @since 17.0.0
*/
class AddContentSecurityPolicyEvent extends Event {
/** @var ContentSecurityPolicyManager */
private $policyManager;
/**
* @since 17.0.0
*/
public function __construct(ContentSecurityPolicyManager $policyManager) {
$this->policyManager = $policyManager;
}
/**
* @since 17.0.0
*/
public function addPolicy(EmptyContentSecurityPolicy $csp): void {
$this->policyManager->addDefaultPolicy($csp);
}
}

2
lib/public/Security/IContentSecurityPolicyManager.php
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@ -28,6 +28,7 @@ use OCP\AppFramework\Http\EmptyContentSecurityPolicy;
*
* @package OCP\Security
* @since 9.0.0
* @deprecated 17.0.0 listen to the AddContentSecurityPolicyEvent to add a policy
*/
interface IContentSecurityPolicyManager {
/**
@ -46,6 +47,7 @@ interface IContentSecurityPolicyManager {
*
* @param EmptyContentSecurityPolicy $policy
* @since 9.0.0
* @deprecated 17.0.0 listen to the AddContentSecurityPolicyEvent to add a policy
*/
public function addDefaultPolicy(EmptyContentSecurityPolicy $policy);
}

44
tests/lib/Security/CSP/AddContentSecurityPolicyEventTest.php Normal file
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@ -0,0 +1,44 @@
<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2019, Roeland Jago Douma <roeland@famdouma.nl>
*
* @author Roeland Jago Douma <roeland@famdouma.nl>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace Test\Security\CSP;
use OC\Security\CSP\ContentSecurityPolicyManager;
use OCP\AppFramework\Http\ContentSecurityPolicy;
use OCP\Security\CSP\AddContentSecurityPolicyEvent;
use Test\TestCase;
class AddContentSecurityPolicyEventTest extends TestCase {
public function testAddEvent() {
$cspManager = $this->createMock(ContentSecurityPolicyManager::class);
$policy = $this->createMock(ContentSecurityPolicy::class);
$event = new AddContentSecurityPolicyEvent($cspManager);
$cspManager->expects($this->once())
->method('addDefaultPolicy')
->with($policy);
$event->addPolicy($policy);
}
}

54
tests/lib/Security/CSP/ContentSecurityPolicyManagerTest.php
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@ -23,14 +23,24 @@ namespace Test\Security\CSP;
use OC\Security\CSP\ContentSecurityPolicyManager;
use OCP\EventDispatcher\IEventDispatcher;
use OCP\Security\CSP\AddContentSecurityPolicyEvent;
use PHPUnit\Framework\MockObject\MockObject;
use Symfony\Component\EventDispatcher\EventDispatcher;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Test\TestCase;
class ContentSecurityPolicyManagerTest extends TestCase {
/** @var EventDispatcherInterface */
private $dispatcher;
class ContentSecurityPolicyManagerTest extends \Test\TestCase {
/** @var ContentSecurityPolicyManager */
private $contentSecurityPolicyManager;
public function setUp() {
parent::setUp();
$this->contentSecurityPolicyManager = new ContentSecurityPolicyManager();
$this->dispatcher = \OC::$server->query(IEventDispatcher::class);
$this->contentSecurityPolicyManager = new ContentSecurityPolicyManager($this->dispatcher);
}
public function testAddDefaultPolicy() {
@ -69,4 +79,44 @@ class ContentSecurityPolicyManagerTest extends \Test\TestCase {
$this->assertSame($expectedStringPolicy, $this->contentSecurityPolicyManager->getDefaultPolicy()->buildPolicy());
}
public function testGetDefaultPolicyWithPoliciesViaEvent() {
$this->dispatcher->addListener(AddContentSecurityPolicyEvent::class, function(AddContentSecurityPolicyEvent $e) {
$policy = new \OCP\AppFramework\Http\ContentSecurityPolicy();
$policy->addAllowedFontDomain('mydomain.com');
$policy->addAllowedImageDomain('anotherdomain.de');
$e->addPolicy($policy);
});
$this->dispatcher->addListener(AddContentSecurityPolicyEvent::class, function(AddContentSecurityPolicyEvent $e) {
$policy = new \OCP\AppFramework\Http\ContentSecurityPolicy();
$policy->addAllowedFontDomain('example.com');
$policy->addAllowedImageDomain('example.org');
$policy->allowInlineScript(true);
$policy->allowEvalScript(true);
$e->addPolicy($policy);
});
$this->dispatcher->addListener(AddContentSecurityPolicyEvent::class, function(AddContentSecurityPolicyEvent $e) {
$policy = new \OCP\AppFramework\Http\EmptyContentSecurityPolicy();
$policy->addAllowedChildSrcDomain('childdomain');
$policy->addAllowedFontDomain('anotherFontDomain');
$e->addPolicy($policy);
});
$expected = new \OC\Security\CSP\ContentSecurityPolicy();
$expected->allowInlineScript(true);
$expected->allowEvalScript(true);
$expected->addAllowedFontDomain('mydomain.com');
$expected->addAllowedFontDomain('example.com');
$expected->addAllowedFontDomain('anotherFontDomain');
$expected->addAllowedImageDomain('anotherdomain.de');
$expected->addAllowedImageDomain('example.org');
$expected->addAllowedChildSrcDomain('childdomain');
$expectedStringPolicy = "default-src 'none';base-uri 'none';manifest-src 'self';script-src 'self' 'unsafe-inline' 'unsafe-eval';style-src 'self' 'unsafe-inline';img-src 'self' data: blob: anotherdomain.de example.org;font-src 'self' data: mydomain.com example.com anotherFontDomain;connect-src 'self';media-src 'self';child-src childdomain;frame-ancestors 'self'";
$this->assertEquals($expected, $this->contentSecurityPolicyManager->getDefaultPolicy());
$this->assertSame($expectedStringPolicy, $this->contentSecurityPolicyManager->getDefaultPolicy()->buildPolicy());
}
}