[HTTP] Add canonical_uri_template

src/State/Processor/RespondProcessor.php

@@ -16,6 +16,7 @@
 use ApiPlatform\Metadata\HttpOperation;
 use ApiPlatform\Metadata\IriConverterInterface;
 use ApiPlatform\Metadata\Operation;
+use ApiPlatform\Metadata\Operation\Factory\OperationMetadataFactoryInterface;
 use ApiPlatform\Metadata\Put;
 use ApiPlatform\Metadata\ResourceClassResolverInterface;
 use ApiPlatform\Metadata\UrlGeneratorInterface;
@@ -39,8 +40,11 @@ final class RespondProcessor implements ProcessorInterface
         'DELETE' => Response::HTTP_NO_CONTENT,
     ];
 
-    public function __construct(private ?IriConverterInterface $iriConverter = null, private readonly ?ResourceClassResolverInterface $resourceClassResolver = null)
-    {
+    public function __construct(
+        private ?IriConverterInterface $iriConverter = null,
+        private readonly ?ResourceClassResolverInterface $resourceClassResolver = null,
+        private readonly ?OperationMetadataFactoryInterface $operationMetadataFactory = null,
+    ) {
     }
 
     public function process(mixed $data, Operation $operation, array $uriVariables = [], array $context = [])
@@ -75,11 +79,15 @@ public function process(mixed $data, Operation $operation, array $uriVariables =
 
         if ($hasData = ($this->resourceClassResolver && $originalData && \is_object($originalData) && $this->resourceClassResolver->isResourceClass($this->getObjectClass($originalData))) && $this->iriConverter) {
             if (
-                ($operation->getExtraProperties()['is_alternate_resource_metadata'] ?? false)
-                && 301 === $operation->getStatus()
+                300 <= $status && $status < 400
+                && (($operation->getExtraProperties()['is_alternate_resource_metadata'] ?? false) || ($operation->getExtraProperties()['canonical_uri_template'] ?? null))
             ) {
-                $status = 301;
-                $headers['Location'] = $this->iriConverter->getIriFromResource($originalData, UrlGeneratorInterface::ABS_PATH, $operation);
+                $canonicalOperation = $operation;
+                if ($this->operationMetadataFactory && null !== ($operation->getExtraProperties()['canonical_uri_template'] ?? null)) {
+                    $canonicalOperation = $this->operationMetadataFactory->create($operation->getExtraProperties()['canonical_uri_template'], $context);
+                }
+
+                $headers['Location'] = $this->iriConverter->getIriFromResource($originalData, UrlGeneratorInterface::ABS_PATH, $canonicalOperation);
             } elseif ('PUT' === $method && !$request->attributes->get('previous_data') && null === $status && ($operation instanceof Put && ($operation->getAllowCreate() ?? false))) {
                 $status = 201;
             }

src/Symfony/Bundle/Resources/config/state.xml

@@ -37,6 +37,7 @@
         <service id="api_platform.state_processor.respond" class="ApiPlatform\State\Processor\RespondProcessor">
             <argument type="service" id="api_platform.iri_converter" />
             <argument type="service" id="api_platform.resource_class_resolver" />
+            <argument type="service" id="api_platform.metadata.operation.metadata_factory" />
         </service>
         <service id="api_platform.state_processor.main" alias="api_platform.state_processor.respond" />
 

tests/State/RespondProcessorTest.php

@@ -0,0 +1,100 @@
+<?php
+
+/*
+ * This file is part of the API Platform project.
+ *
+ * (c) Kévin Dunglas <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace ApiPlatform\Tests\State;
+
+use ApiPlatform\Api\IriConverterInterface;
+use ApiPlatform\Metadata\Get;
+use ApiPlatform\Metadata\Operation\Factory\OperationMetadataFactoryInterface;
+use ApiPlatform\Metadata\ResourceClassResolverInterface;
+use ApiPlatform\State\Processor\RespondProcessor;
+use ApiPlatform\State\ProcessorInterface;
+use ApiPlatform\Tests\Fixtures\TestBundle\Entity\Employee;
+use PHPUnit\Framework\TestCase;
+use Prophecy\Argument;
+use Prophecy\PhpUnit\ProphecyTrait;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+
+class RespondProcessorTest extends TestCase
+{
+    use ProphecyTrait;
+
+    public function testRedirectToOperation(): void
+    {
+        $canonicalUriTemplateRedirectingOperation = new Get(
+            status: 302,
+            extraProperties: [
+                'canonical_uri_template' => '/canonical',
+            ]
+        );
+
+        $alternateRedirectingResourceOperation = new Get(
+            status: 308,
+            extraProperties: [
+                'is_alternate_resource_metadata' => true,
+            ]
+        );
+
+        $alternateResourceOperation = new Get(
+            extraProperties: [
+                'is_alternate_resource_metadata' => true,
+            ]
+        );
+
+        $operationMetadataFactory = $this->prophesize(OperationMetadataFactoryInterface::class);
+        $operationMetadataFactory
+            ->create('/canonical', Argument::type('array'))
+            ->shouldBeCalledOnce()
+            ->willReturn(new Get(uriTemplate: '/canonical'));
+
+        $resourceClassResolver = $this->prophesize(ResourceClassResolverInterface::class);
+        $resourceClassResolver
+            ->isResourceClass(Employee::class)
+            ->willReturn(true);
+
+        $iriConverter = $this->prophesize(IriConverterInterface::class);
+        $iriConverter
+            ->getIriFromResource(Argument::cetera())
+            ->will(static function (array $args): ?string {
+                return ($args[2] ?? null)?->getUriTemplate() ?? '/default';
+            });
+
+        /** @var ProcessorInterface<Response> $respondProcessor */
+        $respondProcessor = new RespondProcessor($iriConverter->reveal(), $resourceClassResolver->reveal(), $operationMetadataFactory->reveal());
+
+        $response = $respondProcessor->process('content', $canonicalUriTemplateRedirectingOperation, context: [
+            'request' => new Request(),
+            'original_data' => new Employee(),
+        ]);
+
+        $this->assertSame(302, $response->getStatusCode());
+        $this->assertSame('/canonical', $response->headers->get('Location'));
+
+        $response = $respondProcessor->process('content', $alternateRedirectingResourceOperation, context: [
+            'request' => new Request(),
+            'original_data' => new Employee(),
+        ]);
+
+        $this->assertSame(308, $response->getStatusCode());
+        $this->assertSame('/default', $response->headers->get('Location'));
+
+        $response = $respondProcessor->process('content', $alternateResourceOperation, context: [
+            'request' => new Request(),
+            'original_data' => new Employee(),
+        ]);
+
+        $this->assertSame(200, $response->getStatusCode());
+        $this->assertNull($response->headers->get('Location'));
+    }
+}