first commit

bundles/KupShop/ResponseCacheBundle/Util/Cache/ResponseCache.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace KupShop\ResponseCacheBundle\Util\Cache;
+
+use Symfony\Component\Cache\Adapter\AdapterInterface;
+use Symfony\Component\HttpFoundation\Response;
+
+class ResponseCache
+{
+    /** @var AdapterInterface */
+    private $cache;
+
+    public function __construct(AdapterInterface $cache)
+    {
+        $this->cache = $cache;
+    }
+
+    public function wrap(callable $responseCallback, string $key, int $ttl = 300, ?array $tags = null, bool &$isHit = false): Response
+    {
+        $cacheResponse = $this->cache->getItem($key);
+
+        if ($cacheResponse->isHit()) {
+            /** @var $response Response */
+            $response = new Response($cacheResponse->get());
+            $response->headers->addCacheControlDirective('must-revalidate', true);
+            $response->headers->addCacheControlDirective('no-store', true);
+            $response->headers->set('X-Cache', $key.': hit');
+            $isHit = true;
+        } else {
+            /** @var $response Response */
+            $response = $responseCallback();
+            if ($response->getStatusCode() == 200) {
+                $cacheResponse->expiresAfter($ttl);
+                if (isset($tags)) {
+                    $cacheResponse->tag($tags);
+                }
+                $cacheResponse->set($response->getContent());
+                $this->cache->save($cacheResponse);
+                $response->headers->set('X-Cache', $key.': store');
+            }
+        }
+
+        return $response;
+    }
+}