opds wip

rusty-library/src/handlers/opds.rs

@@ -0,0 +1,68 @@
+use std::sync::Arc;
+
+use poem::{
+    handler,
+    web::{headers::ContentType, Data, WithContentType},
+    IntoResponse,
+};
+use quick_xml::se::to_string;
+use time::macros::datetime;
+
+use crate::{
+    app_state::AppState,
+    opds::{
+        author::Author, content::Content, entry::Entry, feed::Feed, link::Link,
+        media_type::MediaType, relation::Relation,
+    },
+};
+
+#[handler]
+pub async fn handler(state: Data<&Arc<AppState>>) -> Result<WithContentType<String>, poem::Error> {
+    let author = Author {
+        name: "Thallian".to_string(),
+        uri: "https://code.vanwa.ch/shu/rusty-library".to_string(),
+        email: None,
+    };
+    let home_link = Link {
+        href: "/opds".to_string(),
+        media_type: MediaType::Navigation,
+        rel: Relation::Start,
+        title: Some("Home".to_string()),
+        count: None,
+    };
+    let self_link = Link {
+        href: "/opds".to_string(),
+        media_type: MediaType::Navigation,
+        rel: Relation::Myself,
+        title: None,
+        count: None,
+    };
+    let books_entry = Entry {
+        title: "Books".to_string(),
+        id: "rusty:books".to_string(),
+        updated: datetime!(2024-05-06 19:14:54 UTC),
+        content: Content {
+            media_type: MediaType::Text,
+            content: "Index of all books".to_string(),
+        },
+        links: vec![Link {
+            href: "/opds/books".to_string(),
+            media_type: MediaType::Navigation,
+            rel: Relation::Subsection,
+            title: None,
+            count: None,
+        }],
+    };
+
+    let feed = Feed {
+        title: "rusty-library".to_string(),
+        id: "rusty:catalog".to_string(),
+        updated: datetime!(2024-05-06 19:14:54 UTC),
+        icon: "favicon.ico".to_string(),
+        author,
+        links: vec![home_link, self_link],
+        entries: vec![books_entry],
+    };
+    let xml = feed.as_xml();
+    Ok(xml.with_content_type("application/atom+xml"))
+}