From c81ecbf2192ffa5643b0e6d14c8e86610c3a1fb6 Mon Sep 17 00:00:00 2001
From: Jonas Kohl
Date: Tue, 10 Dec 2024 11:47:59 +0100
Subject: Small tweak

---
 src/application/actions/ctheme/get.php | 24 +++++++++++++++---------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/src/application/actions/ctheme/get.php b/src/application/actions/ctheme/get.php
index 79f6353..558f8d2 100644
--- a/src/application/actions/ctheme/get.php
+++ b/src/application/actions/ctheme/get.php
@@ -2,6 +2,7 @@
 
 // options
 $enableLogging = true;
+$useEtag = true;
 $etag_strip_gzip_suffix = true;
 
 $cssFatal = function(string $msg): never {
@@ -25,7 +26,7 @@ header("Content-Type: text/css; charset=UTF-8");
 header("Cache-Control: no-cache");
 // Disable Apache's gzip filter, as it interferes with our ETag
 // (Apache adds '-gzip' as a ETag suffix)
-if (!$etag_strip_gzip_suffix)
+if ($useEtag && !$etag_strip_gzip_suffix)
     apache_setenv('no-gzip', '1');
 
 $themeName = $_GET["theme"] ?? $_COOKIE["theme"] ?? env("MYSTIC_FORUM_THEME") ?? "default";
@@ -59,17 +60,22 @@ foreach ($theme->files as $file) {
     } else
         $cssError($buffer, "Could not include file $file");
 }
-$etag = md5($buffer);
 
-$ifNoneMatch = $_SERVER["HTTP_IF_NONE_MATCH"] ?? null;
-if ($ifNoneMatch !== null) {
-    $ifNoneMatch = trim($ifNoneMatch, '"');
-    if ($etag_strip_gzip_suffix)
-        $ifNoneMatch = preg_replace('/-gzip$/', '', $ifNoneMatch);
+$ifNoneMatch = null;
+if ($useEtag) {
+    $etag = md5($buffer);
+
+    $ifNoneMatch = $_SERVER["HTTP_IF_NONE_MATCH"] ?? null;
+    if ($ifNoneMatch !== null) {
+        $ifNoneMatch = trim($ifNoneMatch, '"');
+        if ($etag_strip_gzip_suffix)
+            $ifNoneMatch = preg_replace('/-gzip$/', '', $ifNoneMatch);
+    }
+
+    header("ETag: \"$etag\"");
 }
 
-header("ETag: \"$etag\"");
-if ($ifNoneMatch === $etag)
+if ($useEtag && $ifNoneMatch === $etag)
     http_response_code(304);
 else
     echo $buffer;
-- 
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