Preparation of a carddav crate

crates/carddav/src/lib.rs

@@ -0,0 +1,24 @@
+use actix_web::{web, HttpResponse, Responder};
+use rustical_auth::CheckAuthentication;
+use std::sync::Arc;
+
+pub fn configure_well_known(cfg: &mut web::ServiceConfig, carddav_root: String) {
+    cfg.service(web::redirect("/carddav", carddav_root).permanent());
+}
+
+pub fn configure_dav<A: CheckAuthentication>(
+    cfg: &mut web::ServiceConfig,
+    prefix: String,
+    auth: Arc<A>,
+) {
+}
+
+async fn options_handler() -> impl Responder {
+    HttpResponse::Ok()
+        .insert_header((
+            "Allow",
+            "OPTIONS, GET, HEAD, POST, PUT, REPORT, PROPFIND, PROPPATCH, MKCOL",
+        ))
+        .insert_header(("DAV", "1, 2, 3, addressbook, extended-mkcol"))
+        .body("options")
+}