PHP8

[m6w6/seekat] / lib / API / Call / Cache.php

diff --git a/lib/API/Call/Cache.php b/lib/API/Call/Cache.php
index b6d062c7a69810e0a09cd9229a1155b92add50f5..3947259b51d5a09ef57a7157599bc3c6d50f3e9c 100644 (file)
--- a/lib/API/Call/Cache.php
+++ b/lib/API/Call/Cache.php
@@ -9,8 +9,7 @@ use seekat\API\Call\Cache\Service;
 use seekat\API\Call\Cache\Service\Hollow;
 
 
-final class Cache
-{
+final class Cache {
        /**
         * @var Service
         */
@@ -68,7 +67,37 @@ final class Cache
                        }
                        return false;
                }
+               $response->setHeader("X-Cache-Hit", $response->getHeader("X-Cache-Hit") + 1);
                return true;
        }
 
+       /**
+        * Update call data
+        * @param Request $request
+        * @param Response $response
+        * @return bool
+        */
+       public function update(Request $request, Response &$response) : bool {
+               $ctl = new Control($request);
+               if (!$ctl->isValid()) {
+                       return false;
+               }
+
+               if ($response->getResponseCode() !== 304) {
+                       return $this->save($request, $response);
+               }
+
+               /** @var Response $cached */
+               if (!$this->cache->fetch($ctl->getKey(), $cached)) {
+                       return $this->save($request, $response);
+               }
+
+               if ($response->getHeader("ETag") !== $cached->getHeader("ETag")) {
+                       return $this->save($request, $response);
+               }
+
+               $cached->setHeader("X-Cache-Update", $cached->getHeader("X-Cache-Update") + 1);
+               $response = $cached;
+               return true;
+       }
 }