Show guidelines on UI on how to setup network hook

virtweb_backend/src/controllers/server_controller.rs

@@ -5,6 +5,7 @@ use crate::constants::{DISK_NAME_MAX_LEN, DISK_NAME_MIN_LEN, DISK_SIZE_MAX, DISK
 use crate::controllers::{HttpResult, LibVirtReq};
 use crate::extractors::local_auth_extractor::LocalAuthEnabled;
 use crate::libvirt_rest_structures::hypervisor::HypervisorInfo;
+use crate::nat::nat_hook;
 use crate::utils::net_utils;
 use actix_web::{HttpResponse, Responder};
 use sysinfo::{System, SystemExt};
@@ -120,6 +121,21 @@ pub async fn server_info(client: LibVirtReq) -> HttpResult {
     }))
 }
 
+#[derive(serde::Serialize)]
+struct NetworkHookStatus {
+    installed: bool,
+    content: String,
+    path: &'static str,
+}
+
+pub async fn network_hook_status() -> HttpResult {
+    Ok(HttpResponse::Ok().json(NetworkHookStatus {
+        installed: nat_hook::is_installed()?,
+        content: nat_hook::hook_content()?,
+        path: constants::NAT_HOOK_PATH,
+    }))
+}
+
 pub async fn number_vcpus() -> HttpResult {
     let mut system = System::new();
     system.refresh_cpu();