feat: Add headers for wasm support

composer/composer/autoload_classmap.php

@@ -40,6 +40,7 @@
     'OCA\\Richdocuments\\Listener\\AddContentSecurityPolicyListener' => $baseDir . '/../lib/Listener/AddContentSecurityPolicyListener.php',
     'OCA\\Richdocuments\\Listener\\AddFeaturePolicyListener' => $baseDir . '/../lib/Listener/AddFeaturePolicyListener.php',
     'OCA\\Richdocuments\\Listener\\BeforeFetchPreviewListener' => $baseDir . '/../lib/Listener/BeforeFetchPreviewListener.php',
+    'OCA\\Richdocuments\\Listener\\BeforeTemplateRenderedListener' => $baseDir . '/../lib/Listener/BeforeTemplateRenderedListener.php',
     'OCA\\Richdocuments\\Listener\\FileCreatedFromTemplateListener' => $baseDir . '/../lib/Listener/FileCreatedFromTemplateListener.php',
     'OCA\\Richdocuments\\Listener\\LoadViewerListener' => $baseDir . '/../lib/Listener/LoadViewerListener.php',
     'OCA\\Richdocuments\\Listener\\ReferenceListener' => $baseDir . '/../lib/Listener/ReferenceListener.php',

composer/composer/autoload_static.php

@@ -55,6 +55,7 @@ class ComposerStaticInitRichdocuments
         'OCA\\Richdocuments\\Listener\\AddContentSecurityPolicyListener' => __DIR__ . '/..' . '/../lib/Listener/AddContentSecurityPolicyListener.php',
         'OCA\\Richdocuments\\Listener\\AddFeaturePolicyListener' => __DIR__ . '/..' . '/../lib/Listener/AddFeaturePolicyListener.php',
         'OCA\\Richdocuments\\Listener\\BeforeFetchPreviewListener' => __DIR__ . '/..' . '/../lib/Listener/BeforeFetchPreviewListener.php',
+        'OCA\\Richdocuments\\Listener\\BeforeTemplateRenderedListener' => __DIR__ . '/..' . '/../lib/Listener/BeforeTemplateRenderedListener.php',
         'OCA\\Richdocuments\\Listener\\FileCreatedFromTemplateListener' => __DIR__ . '/..' . '/../lib/Listener/FileCreatedFromTemplateListener.php',
         'OCA\\Richdocuments\\Listener\\LoadViewerListener' => __DIR__ . '/..' . '/../lib/Listener/LoadViewerListener.php',
         'OCA\\Richdocuments\\Listener\\ReferenceListener' => __DIR__ . '/..' . '/../lib/Listener/ReferenceListener.php',

lib/AppInfo/Application.php

@@ -31,6 +31,7 @@
 use OCA\Richdocuments\Listener\AddContentSecurityPolicyListener;
 use OCA\Richdocuments\Listener\AddFeaturePolicyListener;
 use OCA\Richdocuments\Listener\BeforeFetchPreviewListener;
+use OCA\Richdocuments\Listener\BeforeTemplateRenderedListener;
 use OCA\Richdocuments\Listener\FileCreatedFromTemplateListener;
 use OCA\Richdocuments\Listener\LoadViewerListener;
 use OCA\Richdocuments\Listener\ReferenceListener;
@@ -53,6 +54,7 @@
 use OCP\AppFramework\Bootstrap\IBootContext;
 use OCP\AppFramework\Bootstrap\IBootstrap;
 use OCP\AppFramework\Bootstrap\IRegistrationContext;
+use OCP\AppFramework\Http\Events\BeforeTemplateRenderedEvent;
 use OCP\Collaboration\Reference\RenderReferenceEvent;
 use OCP\Files\Template\FileCreatedFromTemplateEvent;
 use OCP\Files\Template\ITemplateManager;
@@ -84,6 +86,7 @@ public function register(IRegistrationContext $context): void {
 		$context->registerEventListener(ShareLinkAccessedEvent::class, ShareLinkListener::class);
 		$context->registerEventListener(BeforePreviewFetchedEvent::class, BeforeFetchPreviewListener::class);
 		$context->registerEventListener(RenderReferenceEvent::class, ReferenceListener::class);
+		$context->registerEventListener(BeforeTemplateRenderedEvent::class, BeforeTemplateRenderedListener::class);
 		$context->registerReferenceProvider(OfficeTargetReferenceProvider::class);
 		$context->registerSensitiveMethods(WopiMapper::class, [
 			'getPathForToken',

lib/Listener/AddContentSecurityPolicyListener.php

@@ -25,6 +25,7 @@
 namespace OCA\Richdocuments\Listener;
 
 use OCA\Richdocuments\AppConfig;
+use OCA\Richdocuments\Service\CapabilitiesService;
 use OCP\AppFramework\Http\EmptyContentSecurityPolicy;
 use OCP\EventDispatcher\Event;
 use OCP\EventDispatcher\IEventListener;
@@ -36,6 +37,7 @@ class AddContentSecurityPolicyListener implements IEventListener {
 	public function __construct(
 		private IRequest $request,
 		private AppConfig $config,
+		private CapabilitiesService $capabilitiesService,
 	) {
 	}
 
@@ -52,6 +54,10 @@ public function handle(Event $event): void {
 		$policy->addAllowedFrameDomain("'self'");
 		$policy->addAllowedFrameDomain("nc:");
 
+		if ($this->capabilitiesService->hasWASMSupport()) {
+			$policy->allowEvalWasm(true);
+		}
+
 		foreach ($this->config->getDomainList() as $url) {
 			$policy->addAllowedFrameDomain($url);
 			$policy->addAllowedFormActionDomain($url);

lib/Listener/BeforeTemplateRenderedListener.php

@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OCA\Richdocuments\Listener;
+
+use OCA\Richdocuments\Service\CapabilitiesService;
+use OCP\AppFramework\Http\Events\BeforeTemplateRenderedEvent;
+use OCP\EventDispatcher\Event;
+use OCP\EventDispatcher\IEventListener;
+
+/** @template-implements IEventListener<BeforeTemplateRenderedEvent|Event> */
+class BeforeTemplateRenderedListener implements IEventListener {
+	private CapabilitiesService $capabilitiesService;
+
+	public function __construct(CapabilitiesService $capabilitiesService) {
+		$this->capabilitiesService = $capabilitiesService;
+	}
+
+	public function handle(Event $event): void {
+		if (!$event instanceof BeforeTemplateRenderedEvent) {
+			return;
+		}
+
+		if ($this->capabilitiesService->hasWASMSupport()) {
+			$event->getResponse()->addHeader('Cross-Origin-Opener-Policy', 'same-origin');
+			$event->getResponse()->addHeader('Cross-Origin-Embedder-Policy', 'require-corp');
+		}
+	}
+}

lib/Service/CapabilitiesService.php

@@ -114,6 +114,10 @@ public function hasZoteroSupport(): bool {
 		return $this->getCapabilities()['hasZoteroSupport'] ?? false;
 	}
 
+	public function hasWASMSupport(): bool {
+		return $this->getCapabilities()['hasWASMSupport'] ?? false;
+	}
+
 	public function getProductName(): string {
 		$theme = $this->config->getAppValue(Application::APPNAME, 'theme', 'nextcloud');
 

tests/lib/Listener/AddContentSecurityPolicyListenerTest.php

@@ -27,6 +27,7 @@
 use OC\Security\CSP\ContentSecurityPolicyManager;
 use OCA\Richdocuments\AppConfig;
 use OCA\Richdocuments\Listener\AddContentSecurityPolicyListener;
+use OCA\Richdocuments\Service\CapabilitiesService;
 use OCA\Richdocuments\Service\FederationService;
 use OCP\App\IAppManager;
 use OCP\AppFramework\Http\ContentSecurityPolicy;
@@ -53,6 +54,7 @@ class AddContentSecurityPolicyListenerTest extends TestCase {
 	private $gsConfig;
 	/** @var FederationService|MockObject */
 	private $federationService;
+	private CapabilitiesService|MockObject $capabilitiesService;
 	private AddContentSecurityPolicyListener $listener;
 
 	public function setUp(): void {
@@ -76,11 +78,12 @@ public function setUp(): void {
 			])
 			->onlyMethods(['getCollaboraUrlPublic', 'getGlobalScaleTrustedHosts'])
 			->getMock();
-
+		$this->capabilitiesService = $this->createMock(CapabilitiesService::class);
 
 		$this->listener = new AddContentSecurityPolicyListener(
 			$this->request,
 			$this->config,
+			$this->capabilitiesService,
 		);
 	}
 
@@ -228,4 +231,24 @@ public static function assertArrayUnordered($expected, $actual, $msg = '') {
 		sort($actual);
 		self::assertSame($expected, $actual, $msg);
 	}
+
+	public function testWasm() {
+		$this->expectPageLoad();
+		$this->capabilitiesService->method('hasWASMSupport')
+			->willReturn(true);
+
+		$policy = $this->getMergedPolicy();
+
+		self::assertTrue(str_contains($policy->buildPolicy(), ' \'wasm-unsafe-eval\''));
+	}
+
+	public function testNoWasm() {
+		$this->expectPageLoad();
+		$this->capabilitiesService->method('hasWASMSupport')
+			->willReturn(false);
+
+		$policy = $this->getMergedPolicy();
+
+		self::assertTrue(!str_contains($policy->buildPolicy(), ' \'wasm-unsafe-eval\''));
+	}
 }