3 files changed, 140 insertions, 0 deletions
diff --git a/server/src/helper/accept.rs b/server/src/helper/accept.rs
new file mode 100644
index 0000000..3ac53c8
--- /dev/null
+++ b/server/src/helper/accept.rs
@@ -0,0 +1,68 @@
+/*
+    This file is part of jellything (https://codeberg.org/metamuffin/jellything)
+    which is licensed under the GNU Affero General Public License (version 3); see /COPYING.
+    Copyright (C) 2025 metamuffin <metamuffin.org>
+*/
+use rocket::{
+    http::MediaType,
+    outcome::Outcome,
+    request::{self, FromRequest},
+    Request,
+};
+use std::ops::Deref;
+
+#[derive(Debug, Default)]
+pub enum Accept {
+    #[default]
+    Other,
+    Json,
+    Image,
+    Media,
+    Html,
+}
+impl Accept {
+    pub fn from_request_ut(request: &Request) -> Self {
+        if let Some(a) = request.accept() {
+            if a.preferred().exact_eq(&MediaType::JSON) {
+                Accept::Json
+            } else {
+                Accept::Other
+            }
+        } else {
+            Accept::Other
+        }
+    }
+}
+
+pub struct AcceptJson(bool);
+impl Deref for AcceptJson {
+    type Target = bool;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl<'r> FromRequest<'r> for AcceptJson {
+    type Error = ();
+
+    fn from_request<'life0, 'async_trait>(
+        request: &'r Request<'life0>,
+    ) -> ::core::pin::Pin<
+        Box<
+            dyn ::core::future::Future<Output = request::Outcome<Self, Self::Error>>
+                + ::core::marker::Send
+                + 'async_trait,
+        >,
+    >
+    where
+        'r: 'async_trait,
+        'life0: 'async_trait,
+        Self: 'async_trait,
+    {
+        Box::pin(async move {
+            Outcome::Success(AcceptJson(matches!(
+                Accept::from_request_ut(request),
+                Accept::Json
+            )))
+        })
+    }
+}
diff --git a/server/src/helper/language.rs b/server/src/helper/language.rs
new file mode 100644
index 0000000..a441919
--- /dev/null
+++ b/server/src/helper/language.rs
@@ -0,0 +1,60 @@
+/*
+    This file is part of jellything (https://codeberg.org/metamuffin/jellything)
+    which is licensed under the GNU Affero General Public License (version 3); see /COPYING.
+    Copyright (C) 2025 metamuffin <metamuffin.org>
+*/
+use jellyui::locale::Language;
+use rocket::{
+    outcome::Outcome,
+    request::{self, FromRequest},
+    Request,
+};
+use std::ops::Deref;
+
+pub struct AcceptLanguage(pub Language);
+impl Deref for AcceptLanguage {
+    type Target = Language;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl<'r> FromRequest<'r> for AcceptLanguage {
+    type Error = ();
+
+    fn from_request<'life0, 'async_trait>(
+        request: &'r Request<'life0>,
+    ) -> ::core::pin::Pin<
+        Box<
+            dyn ::core::future::Future<Output = request::Outcome<Self, Self::Error>>
+                + ::core::marker::Send
+                + 'async_trait,
+        >,
+    >
+    where
+        'r: 'async_trait,
+        'life0: 'async_trait,
+        Self: 'async_trait,
+    {
+        Box::pin(async move { Outcome::Success(AcceptLanguage(lang_from_request(request))) })
+    }
+}
+
+pub(crate) fn lang_from_request(request: &Request) -> Language {
+    request
+        .headers()
+        .get_one("accept-language")
+        .and_then(|h| {
+            h.split(",")
+                .filter_map(|e| {
+                    let code = e.split(";").next()?;
+                    let code = code.split_once("-").unwrap_or((code, "")).0;
+                    match code {
+                        "en" => Some(Language::English),
+                        "de" => Some(Language::German),
+                        _ => None,
+                    }
+                })
+                .next()
+        })
+        .unwrap_or(Language::English)
+}
diff --git a/server/src/helper/mod.rs b/server/src/helper/mod.rs
index f068cbc..4b0644c 100644
--- a/server/src/helper/mod.rs
+++ b/server/src/helper/mod.rs
@@ -3,11 +3,23 @@
     which is licensed under the GNU Affero General Public License (version 3); see /COPYING.
     Copyright (C) 2025 metamuffin <metamuffin.org>
 */
+pub mod accept;
 pub mod cache;
 pub mod cors;
 pub mod filter_sort;
+pub mod language;
 pub mod node_id;
 pub mod session;
 
+use accept::Accept;
+use jellylogic::session::Session;
+use jellyui::locale::Language;
+
 #[derive(Debug, Clone, Copy, Default)]
 pub struct A<T>(pub T);
+
+pub struct RequestInfo {
+    pub lang: Language,
+    pub accept: Accept,
+    pub session: Session,
+}