From 3c9a64982219618b2d4920a07936bf1b18c2f6bb Mon Sep 17 00:00:00 2001
From: Philipp Dieter <philipp.dieter@attic-media.de>
Date: Sun, 19 Dec 2021 17:43:35 +0100
Subject: [PATCH] [FEATURE] Add removeCHashIfOnlyParameter to SiteConfigUtility

---
 Classes/Utility/StringUtility.php | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/Classes/Utility/StringUtility.php b/Classes/Utility/StringUtility.php
index f157e59..da68f50 100644
--- a/Classes/Utility/StringUtility.php
+++ b/Classes/Utility/StringUtility.php
@@ -71,4 +71,20 @@ class StringUtility
         }
         return $string;
     }
+
+    public static function removeCHashIfOnlyParameter($uri) {
+        $parsedUri = parse_url($uri);
+        parse_str($parsedUri['query'], $parsedQuery);
+        if (
+            count($parsedQuery) == 1
+            && array_key_exists('cHash', $parsedQuery)
+        ) {
+            unset($parsedQuery['cHash']);
+        }
+        $updatedQuery = http_build_query($parsedQuery);
+        return $parsedUri['scheme'] . '://'
+            . $parsedUri['host']
+            . $parsedUri['path']
+            . ($updatedQuery ? '?' . $updatedQuery : '');
+    }
 }