feat(windows): When the tunnel is ready, show a notification (#3166)

This is handy since the systray icon is hidden by default:


![image](https://github.com/firezone/firezone/assets/13400041/7c434538-8baf-46ca-92db-1fea97e84f41)

---------

Signed-off-by: Reactor Scram <ReactorScram@users.noreply.github.com>
Co-authored-by: Jamil <jamilbk@users.noreply.github.com>

rust/Cargo.lock

@@ -2620,9 +2620,9 @@ dependencies = [
 
 [[package]]
 name = "h2"
-version = "0.3.22"
+version = "0.3.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4d6250322ef6e60f93f9a2162799302cd6f68f79f6e5d85c8c16f14d1d958178"
+checksum = "b553656127a00601c8ae5590fcfdc118e4083a7924b6cf4ffc1ea4b99dc429d7"
 dependencies = [
  "bytes",
  "fnv",
@@ -3407,6 +3407,19 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c41e0c4fef86961ac6d6f8a82609f55f31b05e4fce149ac5710e439df7619ba4"
 
+[[package]]
+name = "mac-notification-sys"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "51fca4d74ff9dbaac16a01b924bc3693fa2bba0862c2c633abc73f9a8ea21f64"
+dependencies = [
+ "cc",
+ "dirs-next",
+ "objc-foundation",
+ "objc_id",
+ "time",
+]
+
 [[package]]
 name = "malloc_buf"
 version = "0.0.6"
@@ -3693,6 +3706,19 @@ dependencies = [
  "minimal-lexical",
 ]
 
+[[package]]
+name = "notify-rust"
+version = "4.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "827c5edfa80235ded4ab3fe8e9dc619b4f866ef16fe9b1c6b8a7f8692c0f2226"
+dependencies = [
+ "log",
+ "mac-notification-sys",
+ "serde",
+ "tauri-winrt-notification",
+ "zbus",
+]
+
 [[package]]
 name = "nu-ansi-term"
 version = "0.46.0"
@@ -4376,7 +4402,7 @@ dependencies = [
  "base64 0.21.6",
  "indexmap 2.1.0",
  "line-wrap",
- "quick-xml",
+ "quick-xml 0.31.0",
  "serde",
  "time",
 ]
@@ -4614,6 +4640,15 @@ version = "1.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"
 
+[[package]]
+name = "quick-xml"
+version = "0.30.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eff6510e86862b57b210fd8cbe8ed3f0d7d600b9c2863cd4549a2e033c66e956"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "quick-xml"
 version = "0.31.0"
@@ -6004,6 +6039,7 @@ dependencies = [
  "heck 0.4.1",
  "http",
  "ignore",
+ "notify-rust",
  "objc",
  "once_cell",
  "open",
@@ -6173,6 +6209,16 @@ dependencies = [
  "toml 0.7.8",
 ]
 
+[[package]]
+name = "tauri-winrt-notification"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "006851c9ccefa3c38a7646b8cec804bb429def3da10497bfa977179869c3e8e2"
+dependencies = [
+ "quick-xml 0.30.0",
+ "windows 0.51.1",
+]
+
 [[package]]
 name = "tempfile"
 version = "3.9.0"
@@ -7845,9 +7891,9 @@ checksum = "dff9641d1cd4be8d1a070daf9e3773c5f67e78b4d9d42263020c057706765c04"
 
 [[package]]
 name = "winnow"
-version = "0.5.33"
+version = "0.5.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7520bbdec7211caa7c4e682eb1fbe07abe20cee6756b6e00f537c82c11816aa"
+checksum = "b7cf47b659b318dccbd69cc4797a39ae128f533dce7902a1096044d1967b9c16"
 dependencies = [
  "memchr",
 ]

rust/windows-client/src-tauri/Cargo.toml

@@ -46,7 +46,7 @@ windows-implement = "0.52.0"
 
 [target.'cfg(windows)'.dependencies]
 # Tauri works fine on Linux, but it requires a lot of build-time deps like glib and gdk, so I've blocked it out for now.
-tauri = { version = "1.5", features = [ "dialog", "shell-open-api", "system-tray" ] }
+tauri = { version = "1.5", features = [ "dialog", "notification", "shell-open-api", "system-tray" ] }
 tauri-utils = "1.5.1"
 winreg = "0.51.0"
 wintun = "0.3.2"

rust/windows-client/src-tauri/src/client/gui.rs

@@ -15,7 +15,7 @@ use connlib_shared::messages::ResourceId;
 use secrecy::{ExposeSecret, SecretString};
 use std::{net::IpAddr, path::PathBuf, str::FromStr, sync::Arc, time::Duration};
 use system_tray_menu::Event as TrayMenuEvent;
-use tauri::{Manager, SystemTray, SystemTrayEvent};
+use tauri::{api::notification::Notification, Manager, SystemTray, SystemTrayEvent};
 use tokio::sync::{mpsc, oneshot, Notify};
 use ControllerRequest as Req;
 
@@ -219,6 +219,7 @@ pub(crate) enum ControllerRequest {
     SignIn,
     StartStopLogCounting(bool),
     SignOut,
+    TunnelReady,
 }
 
 #[derive(Clone)]
@@ -251,12 +252,13 @@ impl connlib_client_shared::Callbacks for CallbackHandler {
     }
 
     fn on_tunnel_ready(&self) -> Result<(), Self::Error> {
-        // TODO: implement
         tracing::info!("on_tunnel_ready");
+        self.ctlr_tx.try_send(ControllerRequest::TunnelReady)?;
         Ok(())
     }
 
     fn on_update_resources(&self, resources: Vec<ResourceDescription>) -> Result<(), Self::Error> {
+        tracing::info!("on_update_resources");
         self.resources.store(resources.into());
         self.notify_controller.notify_one();
         Ok(())
@@ -493,6 +495,14 @@ async fn run_controller(
                             tracing::debug!("cancelled log counting");
                         }
                     }
+                    Req::TunnelReady => {
+                        // May say "Windows Powershell" in dev mode
+                        // See https://github.com/tauri-apps/tauri/issues/3700
+                        Notification::new(&controller.app.config().tauri.bundle.identifier)
+                            .title("Firezone connected")
+                            .body("You are now signed in and able to access resources.")
+                            .show()?;
+                    },
                 }
             }
         }