symfony · fabpot · Sep 14, 2025 · May 9, 2025 · stof · Sep 10, 2025
diff --git a/src/Symfony/Bundle/FrameworkBundle/CHANGELOG.md b/src/Symfony/Bundle/FrameworkBundle/CHANGELOG.md
@@ -11,6 +11,7 @@ CHANGELOG
  * Add `assertEmailAddressNotContains()` to the `MailerAssertionsTrait`
  * Add `framework.type_info.aliases` option
  * Add `KernelBrowser::getSession()`
+ * Add autoconfiguration tag `kernel.uri_signer` to `Symfony\Component\HttpFoundation\UriSigner`
 
 7.3
 ---

diff --git a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Compiler/UnusedTagsPass.php b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Compiler/UnusedTagsPass.php
@@ -61,6 +61,7 @@ class UnusedTagsPass implements CompilerPassInterface
         'kernel.fragment_renderer',
         'kernel.locale_aware',
         'kernel.reset',
+        'kernel.uri_signer',
         'ldap',
         'mailer.transport_factory',
         'messenger.bus',

diff --git a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
@@ -101,13 +101,15 @@
 use Symfony\Component\HttpClient\ThrottlingHttpClient;
 use Symfony\Component\HttpClient\UriTemplateHttpClient;
 use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\UriSigner;
 use Symfony\Component\HttpKernel\Attribute\AsController;
 use Symfony\Component\HttpKernel\Attribute\AsTargetedValueResolver;
 use Symfony\Component\HttpKernel\CacheClearer\CacheClearerInterface;
 use Symfony\Component\HttpKernel\CacheWarmer\CacheWarmerInterface;
 use Symfony\Component\HttpKernel\Controller\ValueResolverInterface;
 use Symfony\Component\HttpKernel\DataCollector\DataCollectorInterface;
 use Symfony\Component\HttpKernel\DependencyInjection\Extension;
+use Symfony\Component\HttpKernel\EventListener\IsSignatureValidAttributeListener;
 use Symfony\Component\HttpKernel\Log\DebugLoggerConfigurator;
 use Symfony\Component\HttpKernel\Profiler\ProfilerStateChecker;
 use Symfony\Component\JsonStreamer\Attribute\JsonStreamable;
@@ -288,6 +290,9 @@ public function load(array $configs, ContainerBuilder $container): void
         if (!class_exists(RunProcessMessageHandler::class)) {
             $container->removeDefinition('process.messenger.process_message_handler');
         }
+        if (!class_exists(IsSignatureValidAttributeListener::class)) {
+            $container->removeDefinition('controller.is_signature_valid_attribute_listener');
+        }
 
         if ($this->hasConsole()) {
             $loader->load('console.php');
@@ -762,6 +767,8 @@ public function load(array $configs, ContainerBuilder $container): void
             ->addTag('mime.mime_type_guesser');
         $container->registerForAutoconfiguration(LoggerAwareInterface::class)
             ->addMethodCall('setLogger', [new Reference('logger')]);
+        $container->registerForAutoconfiguration(UriSigner::class)
+            ->addTag('kernel.uri_signer');
 
         $container->registerAttributeForAutoconfiguration(AsEventListener::class, static function (ChildDefinition $definition, AsEventListener $attribute, \ReflectionClass|\ReflectionMethod $reflector) {
             $tagAttributes = get_object_vars($attribute);

diff --git a/src/Symfony/Bundle/FrameworkBundle/Resources/config/web.php b/src/Symfony/Bundle/FrameworkBundle/Resources/config/web.php
@@ -32,6 +32,7 @@
 use Symfony\Component\HttpKernel\EventListener\CacheAttributeListener;
 use Symfony\Component\HttpKernel\EventListener\DisallowRobotsIndexingListener;
 use Symfony\Component\HttpKernel\EventListener\ErrorListener;
+use Symfony\Component\HttpKernel\EventListener\IsSignatureValidAttributeListener;
 use Symfony\Component\HttpKernel\EventListener\LocaleListener;
 use Symfony\Component\HttpKernel\EventListener\ResponseListener;
 use Symfony\Component\HttpKernel\EventListener\ValidateRequestListener;
@@ -148,6 +149,13 @@
             ->tag('kernel.event_subscriber')
             ->tag('kernel.reset', ['method' => '?reset'])
 
+        ->set('controller.is_signature_valid_attribute_listener', IsSignatureValidAttributeListener::class)
+            ->args([
+                service('uri_signer'),
+                tagged_locator('kernel.uri_signer'),
+            ])
+            ->tag('kernel.event_subscriber')
+
         ->set('controller.helper', ControllerHelper::class)
             ->tag('container.service_subscriber')
 

diff --git a/src/Symfony/Component/HttpFoundation/CHANGELOG.md b/src/Symfony/Component/HttpFoundation/CHANGELOG.md
@@ -5,6 +5,7 @@ CHANGELOG
 ---
 
  * Deprecate using `Request::sendHeaders()` after headers have already been sent; use a `StreamedResponse` instead
+ * Add `#[WithHttpStatus]` to define status codes: 404 for `SignedUriException` and 403 for `ExpiredSignedUriException`
  * Add support for the `QUERY` HTTP method
  * Add support for structured MIME suffix
 

diff --git a/src/Symfony/Component/HttpFoundation/Exception/ExpiredSignedUriException.php b/src/Symfony/Component/HttpFoundation/Exception/ExpiredSignedUriException.php
@@ -11,9 +11,13 @@
 
 namespace Symfony\Component\HttpFoundation\Exception;
 
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\HttpKernel\Attribute\WithHttpStatus;
+
 /**
  * @author Kevin Bond <[email protected]>
  */
+#[WithHttpStatus(Response::HTTP_FORBIDDEN)]
 final class ExpiredSignedUriException extends SignedUriException
 {
     /**

diff --git a/src/Symfony/Component/HttpFoundation/Exception/SignedUriException.php b/src/Symfony/Component/HttpFoundation/Exception/SignedUriException.php
@@ -11,9 +11,13 @@
 
 namespace Symfony\Component\HttpFoundation\Exception;
 
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\HttpKernel\Attribute\WithHttpStatus;
+
 /**
  * @author Kevin Bond <[email protected]>
  */
+#[WithHttpStatus(Response::HTTP_NOT_FOUND)]
 abstract class SignedUriException extends \RuntimeException implements ExceptionInterface
 {
 }
diff --git a/src/Symfony/Component/HttpKernel/Attribute/IsSignatureValid.php b/src/Symfony/Component/HttpKernel/Attribute/IsSignatureValid.php
@@ -0,0 +1,45 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\HttpKernel\Attribute;
+
+/**
+ * Validates the request signature for specific HTTP methods.
+ *
+ * This class determines whether a request's signature should be validated
+ * based on the configured HTTP methods. If the request method matches one
+ * of the specified methods (or if no methods are specified), the signature
+ * is checked.
+ *
+ * If the signature is invalid, a {@see \Symfony\Component\HttpFoundation\Exception\SignedUriException}
+ * is thrown during validation.
+ *
+ * @author Santiago San Martin <[email protected]>
+ */
+#[\Attribute(\Attribute::IS_REPEATABLE | \Attribute::TARGET_CLASS | \Attribute::TARGET_METHOD | \Attribute::TARGET_FUNCTION)]
+final class IsSignatureValid
+{
+    /** @var string[] */
+    public readonly array $methods;
+    public readonly ?string $signer;
+
+    /**
+     * @param string[]|string $methods HTTP methods that require signature validation. An empty array means that no method filtering is done
+     * @param string          $signer  The ID of the UriSigner service to use for signature validation. Defaults to 'uri_signer'
+     */
+    public function __construct(
+        array|string $methods = [],
+        ?string $signer = null,
+    ) {
+        $this->methods = (array) $methods;
+        $this->signer = $signer;
+    }
+}
diff --git a/src/Symfony/Component/HttpKernel/CHANGELOG.md b/src/Symfony/Component/HttpKernel/CHANGELOG.md
@@ -7,6 +7,7 @@ CHANGELOG
  * Add support for the `QUERY` HTTP method
  * Deprecate implementing `__sleep/wakeup()` on kernels; use `__(un)serialize()` instead
  * Deprecate implementing `__sleep/wakeup()` on data collectors; use `__(un)serialize()` instead
+ * Add `#[IsSignatureValid]` attribute to validate URI signatures
  * Make `Profile` final and `Profiler::__sleep()` internal
 
 7.3

diff --git a/src/Symfony/Component/HttpKernel/EventListener/IsSignatureValidAttributeListener.php b/src/Symfony/Component/HttpKernel/EventListener/IsSignatureValidAttributeListener.php
@@ -0,0 +1,65 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\HttpKernel\EventListener;
+
+use Psr\Container\ContainerInterface;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+use Symfony\Component\HttpFoundation\UriSigner;
+use Symfony\Component\HttpKernel\Attribute\IsSignatureValid;
+use Symfony\Component\HttpKernel\Event\ControllerArgumentsEvent;
+use Symfony\Component\HttpKernel\KernelEvents;
+
+/**
+ * Handles the IsSignatureValid attribute.
+ *
+ * @author Santiago San Martin <[email protected]>
+ */
+class IsSignatureValidAttributeListener implements EventSubscriberInterface
+{
+    public function __construct(
+        private readonly UriSigner $uriSigner,
+        private readonly ContainerInterface $container,
+    ) {
+    }
+
+    public function onKernelControllerArguments(ControllerArgumentsEvent $event): void
+    {
+        if (!$attributes = $event->getAttributes(IsSignatureValid::class)) {
+            return;
+        }
+
+        $request = $event->getRequest();
+        foreach ($attributes as $attribute) {
+            $methods = array_map('strtoupper', $attribute->methods);
+            if ($methods && !\in_array($request->getMethod(), $methods, true)) {
+                continue;
+            }
+
+            if (null === $attribute->signer) {
+                $this->uriSigner->verify($request);
+                continue;
+            }
+
+            $signer = $this->container->get($attribute->signer);
+            if (!$signer instanceof UriSigner) {
+                throw new \LogicException(\sprintf('The service "%s" is not an instance of "%s".', $attribute->signer, UriSigner::class));
+            }
+
+            $signer->verify($request);
+        }
+    }
+
+    public static function getSubscribedEvents(): array
+    {
+        return [KernelEvents::CONTROLLER_ARGUMENTS => ['onKernelControllerArguments', 30]];
+    }
+}