TASK: Adjust to media changes for asset replacement follow up

Moves handling of asset redirects after resource replacement
to the redirect package.

See:
neos/neos-development-collection#4815
neos/neos-development-collection#4816

Classes/AssetRedirectAfterReplacement.php

@@ -0,0 +1,34 @@
+<?php
+namespace Neos\RedirectHandler;
+
+use GuzzleHttp\Psr7\Uri;
+use Neos\Flow\Annotations as Flow;
+use Neos\Flow\ResourceManagement\ResourceManager;
+use Neos\Media\Domain\Model\Dto\AssetResourceReplaced;
+use Neos\Media\Domain\Service\AssetResourceReplacementFollowUpInterface;
+use Neos\RedirectHandler\Storage\RedirectStorageInterface;
+
+#[Flow\Scope("singleton")]
+class AssetRedirectAfterReplacement implements AssetResourceReplacementFollowUpInterface
+{
+    #[Flow\Inject]
+    protected RedirectStorageInterface $redirectStorage;
+
+    #[Flow\Inject]
+    protected ResourceManager $resourceManager;
+
+    public function handle(AssetResourceReplaced $assetResourceReplaced): void
+    {
+        $originalResourceUriString = $this->resourceManager->getPublicPersistentResourceUri($assetResourceReplaced->previousResource);
+        $newResourceUriString = $this->resourceManager->getPublicPersistentResourceUri($assetResourceReplaced->newResource);
+
+        if (!is_string($originalResourceUriString) || !is_string($newResourceUriString)) {
+            return;
+        }
+
+        $existingRedirect = $this->redirectStorage->getOneBySourceUriPathAndHost($originalResourceUriString);
+        if ($existingRedirect === null && $originalResourceUriString !== $newResourceUriString) {
+            $this->redirectStorage->addRedirect(new Uri($originalResourceUriString), new Uri($newResourceUriString), 301);
+        }
+    }
+}