From 68a2519e4e8ba81bb70ac0a255a2ddebbf5fbaab Mon Sep 17 00:00:00 2001
From: Florian <florian.zechmeister@digitalservice.bund.de>
Date: Thu, 31 Oct 2024 10:23:45 +0100
Subject: [PATCH] Read the request body

Otherwise it won't be cached
---
 .../a2j/service/subscriber/CallbackVerificationFilter.java    | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/main/java/de/bund/digitalservice/a2j/service/subscriber/CallbackVerificationFilter.java b/src/main/java/de/bund/digitalservice/a2j/service/subscriber/CallbackVerificationFilter.java
index 4ded91c..a2ffba5 100644
--- a/src/main/java/de/bund/digitalservice/a2j/service/subscriber/CallbackVerificationFilter.java
+++ b/src/main/java/de/bund/digitalservice/a2j/service/subscriber/CallbackVerificationFilter.java
@@ -7,6 +7,7 @@
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
 import java.io.IOException;
+import java.util.stream.Collectors;
 import org.jetbrains.annotations.NotNull;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -40,8 +41,7 @@ protected void doFilterInternal(
       throws ServletException, IOException {
 
     ContentCachingRequestWrapper wrappedRequest = new ContentCachingRequestWrapper(request);
-    String requestBody =
-        new String(wrappedRequest.getContentAsByteArray(), request.getCharacterEncoding());
+    String requestBody = wrappedRequest.getReader().lines().collect(Collectors.joining("\n"));
 
     String hmac = request.getHeader("callback-authentication");