From 0d69e36ef780af15aa33aa021c5711496b0ea01e Mon Sep 17 00:00:00 2001
From: metamuffin <metamuffin@disroot.org>
Date: Sat, 13 Sep 2025 23:52:49 +0200
Subject: add vary header on localized files; fix #20

---
 src/modules/files.rs | 19 +++++--------------
 1 file changed, 5 insertions(+), 14 deletions(-)

diff --git a/src/modules/files.rs b/src/modules/files.rs
index 7d6665a..94dab8c 100644
--- a/src/modules/files.rs
+++ b/src/modules/files.rs
@@ -12,7 +12,7 @@ use headers::{
     AcceptRanges, CacheControl, ContentLength, ContentRange, ContentType, HeaderMapExt,
     LastModified,
 };
-use http::header::ACCEPT_LANGUAGE;
+use http::header::{ACCEPT_LANGUAGE, VARY};
 use http_body_util::{combinators::BoxBody, BodyExt, StreamBody};
 use humansize::FormatSizeOptions;
 use hyper::{
@@ -163,16 +163,6 @@ impl Node for Files {
                 false
             };
 
-            // let etag = ETag::from_str(&calc_etag(modified)).map_err(|_| ServiceError::Other)?;
-            // let etag_matches = if self.etag {
-            //     request.headers()
-            //         .typed_get::<headers::IfNoneMatch>()
-            //         .map(|if_none_match| if_none_match.precondition_passes(&etag))
-            //         .unwrap_or_default()
-            // } else {
-            //     false
-            // };
-
             let range = request.headers().typed_get::<headers::Range>();
             let (range_satisfied, range) = bytes_range(range, metadata.len());
 
@@ -221,12 +211,13 @@ impl Node for Files {
                 CacheMode::NoStore => CacheControl::new().with_no_store(),
             });
 
-            // if self.etag {
-            //     r.headers_mut().typed_insert(etag);
-            // }
             if self.last_modified {
                 r.headers_mut().typed_insert(LastModified::from(modified));
             }
+            if self.localize {
+                r.headers_mut()
+                    .insert(VARY, HeaderValue::from_static("accept-language"));
+            }
 
             Ok(r)
         })
-- 
cgit v1.2.3-70-g09d2