feat: Implement basic (dummy) admin auth

src/http/logout.rs

@@ -0,0 +1,23 @@
+use axum::extract::State;
+use axum::response::{IntoResponse, Redirect, Response};
+use axum_extra::extract::cookie::CookieJar;
+
+use crate::db::DatabaseInterface;
+use crate::http::HttpState;
+use crate::http::login::{LoginError, login_page};
+
+pub async fn logout<D: DatabaseInterface>(
+    State(state): State<HttpState<D>>,
+    cookies: CookieJar,
+) -> Response {
+    let Some(session) = state.sessions.get_session(&cookies) else {
+        return (cookies, Redirect::to("/")).into_response();
+    };
+
+    let cookies = state.sessions.remove_session(&session, cookies);
+    (
+        cookies,
+        login_page(State(state), Some(LoginError::SessionInvalidated)).await,
+    )
+        .into_response()
+}