feat: Sync system's connection state on windows (#346)

* sync client connections on windows

* add target_os to imports

* add target_os to more imports

* change log message

src-tauri/Cargo.toml

@@ -36,23 +36,23 @@ serde_json = "1.0"
 serde = { version = "1.0", features = ["derive"] }
 serde_with = "3.9"
 sqlx = { version = "0.8", features = [
-    "chrono",
-    "sqlite",
-    "runtime-tokio",
-    "uuid",
-    "macros",
+  "chrono",
+  "sqlite",
+  "runtime-tokio",
+  "uuid",
+  "macros",
 ] }
 struct-patch = "0.4"
 strum = { version = "0.26", features = ["derive"] }
 tauri = { version = "1.8", features = [
-    "dialog-all",
-    "clipboard-all",
-    "http-all",
-    "window-all",
-    "system-tray",
-    "native-tls-vendored",
-    "icon-png",
-    "fs-all",
+  "dialog-all",
+  "clipboard-all",
+  "http-all",
+  "window-all",
+  "system-tray",
+  "native-tls-vendored",
+  "icon-png",
+  "fs-all",
 ] }
 tauri-plugin-single-instance = { git = "https://github.com/tauri-apps/plugins-workspace", branch = "v1" }
 tauri-plugin-log = { git = "https://github.com/tauri-apps/plugins-workspace", branch = "v1" }
@@ -70,6 +70,8 @@ x25519-dalek = { version = "2", features = ["getrandom", "static_secrets"] }
 
 [target.'cfg(target_os = "windows")'.dependencies]
 windows-service = "0.7"
+winapi = { version = "0.3", features = ["winsvc", "winerror"] }
+widestring = "0.4"
 
 [target.'cfg(target_os = "macos")'.dependencies]
 nix = { version = "0.29", features = ["net"] }

src-tauri/src/bin/defguard-client.rs

@@ -5,6 +5,8 @@
 
 use std::{env, str::FromStr};
 
+#[cfg(target_os = "windows")]
+use defguard_client::utils::sync_connections;
 use defguard_client::{
     __cmd__active_connection, __cmd__all_connections, __cmd__all_instances, __cmd__all_locations,
     __cmd__all_tunnels, __cmd__connect, __cmd__delete_instance, __cmd__delete_tunnel,
@@ -219,6 +221,27 @@ async fn main() {
     *app_state.db.lock().unwrap() = Some(db);
     debug!("Database setup has been completed successfully.");
 
+    // Sync already active connections on windows.
+    // When windows is restarted, the app doesn't close the active connections
+    // and they are still running after the restart. We sync them here to
+    // reflect the real system's state.
+    // TODO: Find a way to intercept the shutdown event and close all connections
+    #[cfg(target_os = "windows")]
+    {
+        match sync_connections(&app_handle).await {
+            Ok(_) => {
+                info!("Synchronized application's active connections with the connections already open on the system, if there were any.")
+            }
+            Err(e) => {
+                warn!(
+                    "Failed to synchronize application's active connections with the connections already open on the system. \
+                    The connections' state in the application may not reflect system's state. Reconnect manually to reset them. Error details: {}",
+                    e
+                )
+            }
+        };
+    }
+
     // configure tray
     debug!("Configuring tray icon...");
     if let Ok(settings) = Settings::get(&app_state.get_pool()).await {