Refactor using Tauri (#278)

apps/gpclient/src/launch_gui.rs

@@ -0,0 +1,88 @@
+use std::{collections::HashMap, fs, path::PathBuf};
+
+use clap::Args;
+use directories::ProjectDirs;
+use gpapi::{
+  process::service_launcher::ServiceLauncher,
+  utils::{endpoint::http_endpoint, env_file, shutdown_signal},
+};
+use log::info;
+
+#[derive(Args)]
+pub(crate) struct LaunchGuiArgs {
+  #[clap(long, help = "Launch the GUI minimized")]
+  minimized: bool,
+}
+
+pub(crate) struct LaunchGuiHandler<'a> {
+  args: &'a LaunchGuiArgs,
+}
+
+impl<'a> LaunchGuiHandler<'a> {
+  pub(crate) fn new(args: &'a LaunchGuiArgs) -> Self {
+    Self { args }
+  }
+
+  pub(crate) async fn handle(&self) -> anyhow::Result<()> {
+    // `launch-gui`cannot be run as root
+    let user = whoami::username();
+    if user == "root" {
+      anyhow::bail!("`launch-gui` cannot be run as root");
+    }
+
+    if try_active_gui().await.is_ok() {
+      info!("The GUI is already running");
+      return Ok(());
+    }
+
+    tokio::spawn(async move {
+      shutdown_signal().await;
+      info!("Shutting down...");
+    });
+
+    let log_file = get_log_file()?;
+    let log_file_path = log_file.to_string_lossy().to_string();
+
+    info!("Log file: {}", log_file_path);
+
+    let mut extra_envs = HashMap::<String, String>::new();
+    extra_envs.insert("GP_LOG_FILE".into(), log_file_path.clone());
+
+    // Persist the environment variables to a file
+    let env_file = env_file::persist_env_vars(Some(extra_envs))?;
+    let env_file = env_file.into_temp_path();
+    let env_file_path = env_file.to_string_lossy().to_string();
+
+    let exit_status = ServiceLauncher::new()
+      .minimized(self.args.minimized)
+      .env_file(&env_file_path)
+      .log_file(&log_file_path)
+      .launch()
+      .await?;
+
+    info!("Service exited with status: {}", exit_status);
+
+    Ok(())
+  }
+}
+
+async fn try_active_gui() -> anyhow::Result<()> {
+  let service_endpoint = http_endpoint().await?;
+
+  reqwest::Client::default()
+    .post(format!("{}/active-gui", service_endpoint))
+    .send()
+    .await?
+    .error_for_status()?;
+
+  Ok(())
+}
+
+pub fn get_log_file() -> anyhow::Result<PathBuf> {
+  let dirs = ProjectDirs::from("com.yuezk", "GlobalProtect-openconnect", "gpclient")
+    .ok_or_else(|| anyhow::anyhow!("Failed to get project dirs"))?;
+
+  fs::create_dir_all(dirs.data_dir())?;
+
+  Ok(dirs.data_dir().join("gpclient.log"))
+}