proper layout

src/controllers/auth.rs

@@ -14,7 +14,7 @@ use std::sync::OnceLock;
 use time::Duration as TimeDuration;
 
 pub static EMAIL_DOMAIN_RE: OnceLock<Regex> = OnceLock::new();
-const AUTH_COOKIE: &str = "auth_token";
+pub(crate) const AUTH_COOKIE: &str = "auth_token";
 
 fn get_allow_email_domain_re() -> &'static Regex {
     EMAIL_DOMAIN_RE.get_or_init(|| {

src/controllers/frontend.rs

@@ -5,6 +5,7 @@ use crate::{
         users::{self, LoginParams},
     },
 };
+use axum_extra::extract::cookie::CookieJar;
 use chrono::Utc;
 use loco_rs::prelude::*;
 use sea_orm::{
@@ -87,8 +88,27 @@ async fn article_by_id(ctx: &AppContext, id: Uuid) -> Result<blog_articles::Mode
         .ok_or_else(|| Error::NotFound)
 }
 
+async fn logged_in_admin(ctx: &AppContext, jar: &CookieJar) -> bool {
+    let Some(cookie) = jar.get(auth_controller::AUTH_COOKIE) else {
+        return false;
+    };
+    let Ok(jwt_config) = ctx.config.get_jwt_config() else {
+        return false;
+    };
+    let Ok(claims) = loco_rs::auth::jwt::JWT::new(&jwt_config.secret).validate(cookie.value())
+    else {
+        return false;
+    };
+    let Ok(user) = users::Model::find_by_pid(&ctx.db, &claims.claims.pid).await else {
+        return false;
+    };
+
+    admin::is_admin(ctx, &user)
+}
+
 #[debug_handler]
 async fn home(
+    jar: CookieJar,
     ViewEngine(v): ViewEngine<TeraView>,
     State(ctx): State<AppContext>,
 ) -> Result<Response> {
@@ -99,19 +119,32 @@ async fn home(
         .all(&ctx.db)
         .await?;
 
-    format::view(&v, "home/index.html", json!({ "articles": articles }))
+    format::view(
+        &v,
+        "home/index.html",
+        json!({ "articles": articles, "logged_in_admin": logged_in_admin(&ctx, &jar).await }),
+    )
 }
 
 #[debug_handler]
 async fn about(
+    jar: CookieJar,
     ViewEngine(v): ViewEngine<TeraView>,
     State(ctx): State<AppContext>,
 ) -> Result<Response> {
-    format::view(&v, "pages/about.html", json!({ "page": about_page(&ctx).await? }))
+    format::view(
+        &v,
+        "pages/about.html",
+        json!({
+            "page": about_page(&ctx).await?,
+            "logged_in_admin": logged_in_admin(&ctx, &jar).await,
+        }),
+    )
 }
 
 #[debug_handler]
 async fn blog_index(
+    jar: CookieJar,
     ViewEngine(v): ViewEngine<TeraView>,
     State(ctx): State<AppContext>,
 ) -> Result<Response> {
@@ -121,11 +154,16 @@ async fn blog_index(
         .all(&ctx.db)
         .await?;
 
-    format::view(&v, "blog/index.html", json!({ "articles": articles }))
+    format::view(
+        &v,
+        "blog/index.html",
+        json!({ "articles": articles, "logged_in_admin": logged_in_admin(&ctx, &jar).await }),
+    )
 }
 
 #[debug_handler]
 async fn blog_show(
+    jar: CookieJar,
     ViewEngine(v): ViewEngine<TeraView>,
     Path(slug): Path<String>,
     State(ctx): State<AppContext>,
@@ -142,12 +180,28 @@ async fn blog_show(
     active.view_count = Set(next_count);
     let article = active.update(&ctx.db).await?;
 
-    format::view(&v, "blog/show.html", json!({ "article": article }))
+    format::view(
+        &v,
+        "blog/show.html",
+        json!({ "article": article, "logged_in_admin": logged_in_admin(&ctx, &jar).await }),
+    )
 }
 
 #[debug_handler]
-async fn admin_login_page(ViewEngine(v): ViewEngine<TeraView>) -> Result<Response> {
-    format::view(&v, "admin/login.html", json!({ "error": null }))
+async fn admin_login_page(
+    jar: CookieJar,
+    ViewEngine(v): ViewEngine<TeraView>,
+    State(ctx): State<AppContext>,
+) -> Result<Response> {
+    if logged_in_admin(&ctx, &jar).await {
+        return format::redirect("/admin/dashboard");
+    }
+
+    format::view(
+        &v,
+        "admin/login.html",
+        json!({ "error": null, "logged_in_admin": false }),
+    )
 }
 
 #[debug_handler]
@@ -157,11 +211,19 @@ async fn admin_login(
     Form(params): Form<LoginParams>,
 ) -> Result<Response> {
     let Ok(user) = users::Model::find_by_email(&ctx.db, &params.email).await else {
-        return format::view(&v, "admin/login.html", json!({ "error": "Invalid credentials" }));
+        return format::view(
+            &v,
+            "admin/login.html",
+            json!({ "error": "Invalid credentials", "logged_in_admin": false }),
+        );
     };
 
     if !user.verify_password(&params.password) || !admin::is_admin(&ctx, &user) {
-        return format::view(&v, "admin/login.html", json!({ "error": "Invalid credentials" }));
+        return format::view(
+            &v,
+            "admin/login.html",
+            json!({ "error": "Invalid credentials", "logged_in_admin": false }),
+        );
     }
 
     let jwt_secret = ctx.config.get_jwt_config()?;