Add JSONFeed

Cargo.toml

@@ -10,6 +10,7 @@ default-run = "quanweb"
 strip="debuginfo"
 
 [dependencies]
+ammonia = "3.3.0"
 async-fred-session = "0.1.5"
 async-trait = "0.1.71"
 atom_syndication = { version = "0.12.2", features = ["serde"] }

src/front/routes.rs

@@ -16,5 +16,6 @@ pub fn get_router() -> Router<AppState> {
     .route("/talk/", get(views::minors::list_talks))
     .route("/book/", get(views::minors::list_books))
     .route("/feeds.atom", get(views::feeds::gen_atom_feeds))
+    .route("/feeds.json", get(views::feeds::gen_json_feeds))
     .route("/api/set-lang", post(views::set_lang))
 }

src/front/structs.rs

@@ -1,3 +1,4 @@
+use std::num::NonZeroU16;
 
 use serde::Deserialize;
 
@@ -11,6 +12,15 @@ pub struct LaxPaging {
     pub page: Option<String>,
 }
 
+impl LaxPaging {
+    /// Get the page as non-zero number (default to 1).
+    /// The type is NonZeroU16 because our website is small enough for page number
+    /// to be fit in u16.
+    pub fn get_page_as_number(&self) -> NonZeroU16 {
+        self.page.as_deref().map(|s| s.parse().ok()).flatten().unwrap_or(NonZeroU16::MIN)
+    }
+}
+
 #[derive(Debug, Clone, Deserialize)]
 pub struct SetLangReq {
     pub lang: String,

src/front/views/blog.rs

@@ -71,10 +71,7 @@ pub async fn list_posts(
     State(state): State<AppState>,
 ) -> AxumResult<Html<String>> {
     let AppState { db, jinja } = state;
-    let current_page = paging
-        .page
-        .and_then(|p| NonZeroU16::new(p.parse().ok()?))
-        .unwrap_or(NonZeroU16::MIN);
+    let current_page = paging.get_page_as_number();
     let page_size = DEFAULT_PAGE_SIZE;
     let offset = ((current_page.get() - 1) * page_size as u16) as i64;
     let cat = stores::blog::get_category_by_slug(&cat_slug, &db)