error: Add error catcher

src/error.rs

@@ -0,0 +1,31 @@
+// gura -- Terra Package Server
+//
+// This file is a part of gura
+//
+// gura is free software: you can redistribute it and/or modify it under the terms of
+// the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// gura is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with gura.
+// If not, see <https://www.gnu.org/licenses/>.
+
+use rocket::http::Status;
+use rocket::Request;
+
+#[catch(default)]
+pub fn default_catcher(status: Status, _: &Request) -> serde_json::Value {
+    if let Some(reason) = status.reason() {
+        serde_json::json!({
+          "code": status.code,
+          "message": reason
+        })
+    } else {
+        serde_json::json!({
+          "code": status.code
+        })
+    }
+}

src/main.rs

@@ -21,6 +21,7 @@ extern crate rocket;
 mod api;
 mod authentication;
 mod database;
+mod error;
 mod models;
 
 use database::Database;
@@ -46,4 +47,5 @@ fn rocket() -> _ {
         .attach(RpmSqlite::init())
         .mount("/", routes![index, health])
         .mount("/api", api::routes())
+        .register("/", catchers![error::default_catcher])
 }