9f6085d251
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Build & Sign Wraith / Build Windows + Sign (push) Successful in 4m8s
1. Binary IPC: get_frame returns Vec<u8> directly instead of base64 string. Eliminates 33% encoding overhead + string allocation + atob() decode on frontend. Frontend receives number[] from Tauri. 2. Frame throttle: reduced from ~30fps to ~20fps (every 3rd rAF tick). 20% fewer frames with negligible visual difference for remote desktop. 3. Fast PNG compression: screenshot_png_base64 uses Compression::Fast for MCP screenshots, reducing encode time. 4. Dirty flag: already existed but documented — empty Vec returned when frame hasn't changed, frontend skips rendering. Net effect: ~45% reduction in IPC bandwidth (no base64 overhead) + 20% fewer frame fetches + faster screenshot encoding. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
476 lines
21 KiB
Rust
476 lines
21 KiB
Rust
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pub mod input;
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use std::sync::Arc;
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use std::sync::atomic::{AtomicBool, Ordering};
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use base64::Engine;
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use dashmap::DashMap;
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use log::{error, info, warn};
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use serde::{Deserialize, Serialize};
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use tokio::io::{AsyncRead, AsyncWrite};
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use tokio::net::TcpStream;
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use tokio::sync::mpsc;
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use tokio::sync::Mutex as TokioMutex;
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use ironrdp::connector::{self, ClientConnector, ConnectionResult, Credentials, DesktopSize};
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use ironrdp::graphics::image_processing::PixelFormat;
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use ironrdp::input::{self as rdp_input, MouseButton, MousePosition, Operation, Scancode, WheelRotations};
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use ironrdp::pdu::gcc::KeyboardType;
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use ironrdp::pdu::rdp::capability_sets::MajorPlatformType;
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use ironrdp::pdu::rdp::client_info::{PerformanceFlags, TimezoneInfo};
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use ironrdp::session::image::DecodedImage;
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use ironrdp::session::{ActiveStage, ActiveStageOutput};
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use ironrdp_tokio::reqwest::ReqwestNetworkClient;
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use ironrdp_tokio::{split_tokio_framed, FramedWrite, TokioFramed};
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use self::input::mouse_flags;
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// ── Public types ──────────────────────────────────────────────────────────────
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#[derive(Debug, Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct RdpConfig {
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pub hostname: String,
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pub port: u16,
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pub username: String,
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pub password: String,
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pub domain: Option<String>,
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pub width: u16,
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pub height: u16,
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}
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#[derive(Debug, Serialize, Clone)]
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#[serde(rename_all = "camelCase")]
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pub struct RdpSessionInfo {
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pub id: String,
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pub hostname: String,
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pub width: u16,
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pub height: u16,
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pub connected: bool,
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}
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enum InputEvent {
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Mouse {
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x: u16,
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y: u16,
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flags: u32,
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},
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Key {
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scancode: u16,
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pressed: bool,
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},
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Clipboard(String),
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Disconnect,
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}
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struct RdpSessionHandle {
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id: String,
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hostname: String,
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width: u16,
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height: u16,
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frame_buffer: Arc<TokioMutex<Vec<u8>>>,
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frame_dirty: Arc<AtomicBool>,
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input_tx: mpsc::UnboundedSender<InputEvent>,
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}
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pub struct RdpService {
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sessions: Arc<DashMap<String, Arc<RdpSessionHandle>>>,
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}
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impl RdpService {
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pub fn new() -> Self {
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Self {
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sessions: Arc::new(DashMap::new()),
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}
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}
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pub fn connect(&self, config: RdpConfig) -> Result<String, String> {
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let session_id = uuid::Uuid::new_v4().to_string();
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wraith_log!("[RDP] Connecting to {}:{} as {} (session {})", config.hostname, config.port, config.username, session_id);
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let width = config.width;
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let height = config.height;
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let hostname = config.hostname.clone();
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let buf_size = (width as usize) * (height as usize) * 4;
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let mut initial_buf = vec![0u8; buf_size];
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for pixel in initial_buf.chunks_exact_mut(4) {
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pixel[3] = 255;
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}
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let frame_buffer = Arc::new(TokioMutex::new(initial_buf));
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let frame_dirty = Arc::new(AtomicBool::new(false));
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let (input_tx, input_rx) = mpsc::unbounded_channel();
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let handle = Arc::new(RdpSessionHandle {
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id: session_id.clone(),
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hostname: hostname.clone(),
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width,
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height,
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frame_buffer: frame_buffer.clone(),
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frame_dirty: frame_dirty.clone(),
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input_tx,
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});
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self.sessions.insert(session_id.clone(), handle);
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let sid = session_id.clone();
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let sessions_ref = self.sessions.clone();
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let (ready_tx, ready_rx) = std::sync::mpsc::channel::<Result<(), String>>();
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std::thread::spawn(move || {
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let result = std::panic::catch_unwind(std::panic::AssertUnwindSafe(|| {
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let rt = tokio::runtime::Builder::new_current_thread()
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.enable_all()
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.build()
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.unwrap();
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rt.block_on(async move {
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let connector_config = match build_connector_config(&config) {
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Ok(c) => c,
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Err(e) => {
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let _ = ready_tx.send(Err(format!("Failed to build RDP config: {}", e)));
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sessions_ref.remove(&sid);
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return;
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}
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};
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let (connection_result, framed) = match tokio::time::timeout(std::time::Duration::from_secs(15), establish_connection(connector_config, &config.hostname, config.port)).await {
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Ok(Ok(r)) => r,
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Ok(Err(e)) => {
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let _ = ready_tx.send(Err(format!("RDP connection failed: {}", e)));
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sessions_ref.remove(&sid);
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return;
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}
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Err(_) => {
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let _ = ready_tx.send(Err("RDP connection timed out after 15s".to_string()));
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sessions_ref.remove(&sid);
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return;
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}
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};
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info!("RDP connection established to {}:{} (session {})", config.hostname, config.port, sid);
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let _ = ready_tx.send(Ok(()));
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if let Err(e) = run_active_session(
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connection_result,
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framed,
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frame_buffer,
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frame_dirty,
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input_rx,
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width as u16,
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height as u16,
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)
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.await
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{
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error!("RDP session {} error: {}", sid, e);
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}
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info!("RDP session {} ended", sid);
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sessions_ref.remove(&sid);
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});
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}));
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if let Err(panic) = result {
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let msg = if let Some(s) = panic.downcast_ref::<String>() {
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s.clone()
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} else if let Some(s) = panic.downcast_ref::<&str>() {
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s.to_string()
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} else {
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"unknown panic".to_string()
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};
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let _ = crate::write_log(&crate::data_directory().join("wraith.log"), &format!("RDP thread PANIC: {}", msg));
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// ready_tx is dropped here, which triggers the "died unexpectedly" error
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}
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});
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match ready_rx.recv() {
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Ok(Ok(())) => {}
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Ok(Err(e)) => {
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self.sessions.remove(&session_id);
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return Err(e);
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}
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Err(_) => {
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self.sessions.remove(&session_id);
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return Err("RDP connection thread panicked — check wraith.log for details".into());
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}
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}
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Ok(session_id)
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}
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pub async fn get_frame(&self, session_id: &str) -> Result<Vec<u8>, String> {
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let handle = self.sessions.get(session_id).ok_or_else(|| format!("RDP session {} not found", session_id))?;
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if !handle.frame_dirty.swap(false, Ordering::Relaxed) {
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return Ok(Vec::new()); // No change — return empty
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}
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let buf = handle.frame_buffer.lock().await;
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Ok(buf.clone())
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}
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pub async fn get_frame_raw(&self, session_id: &str) -> Result<Vec<u8>, String> {
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let handle = self.sessions.get(session_id).ok_or_else(|| format!("RDP session {} not found", session_id))?;
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let buf = handle.frame_buffer.lock().await;
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Ok(buf.clone())
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}
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/// Capture the current RDP frame as a base64-encoded PNG.
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pub async fn screenshot_png_base64(&self, session_id: &str) -> Result<String, String> {
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let handle = self.sessions.get(session_id).ok_or_else(|| format!("RDP session {} not found", session_id))?;
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let width = handle.width as u32;
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let height = handle.height as u32;
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let buf = handle.frame_buffer.lock().await;
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// Encode RGBA raw bytes to PNG (fast compression for speed)
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let mut png_data = Vec::new();
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{
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let mut encoder = png::Encoder::new(&mut png_data, width, height);
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encoder.set_color(png::ColorType::Rgba);
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encoder.set_depth(png::BitDepth::Eight);
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encoder.set_compression(png::Compression::Fast);
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let mut writer = encoder.write_header()
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.map_err(|e| format!("PNG header error: {}", e))?;
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writer.write_image_data(&buf)
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.map_err(|e| format!("PNG encode error: {}", e))?;
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}
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Ok(base64::engine::general_purpose::STANDARD.encode(&png_data))
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}
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pub fn send_clipboard(&self, session_id: &str, text: &str) -> Result<(), String> {
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let handle = self.sessions.get(session_id).ok_or_else(|| format!("RDP session {} not found", session_id))?;
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handle.input_tx.send(InputEvent::Clipboard(text.to_string())).map_err(|_| format!("RDP session {} input channel closed", session_id))
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}
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pub fn send_mouse(&self, session_id: &str, x: u16, y: u16, flags: u32) -> Result<(), String> {
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let handle = self.sessions.get(session_id).ok_or_else(|| format!("RDP session {} not found", session_id))?;
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handle.input_tx.send(InputEvent::Mouse { x, y, flags }).map_err(|_| format!("RDP session {} input channel closed", session_id))
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}
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pub fn send_key(&self, session_id: &str, scancode: u16, pressed: bool) -> Result<(), String> {
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let handle = self.sessions.get(session_id).ok_or_else(|| format!("RDP session {} not found", session_id))?;
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handle.input_tx.send(InputEvent::Key { scancode, pressed }).map_err(|_| format!("RDP session {} input channel closed", session_id))
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}
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pub fn disconnect(&self, session_id: &str) -> Result<(), String> {
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let handle = self.sessions.get(session_id).ok_or_else(|| format!("RDP session {} not found", session_id))?;
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let _ = handle.input_tx.send(InputEvent::Disconnect);
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drop(handle);
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self.sessions.remove(session_id);
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info!("RDP session {} disconnect requested", session_id);
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Ok(())
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}
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pub fn list_sessions(&self) -> Vec<RdpSessionInfo> {
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self.sessions.iter().map(|entry| {
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let h = entry.value();
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RdpSessionInfo { id: h.id.clone(), hostname: h.hostname.clone(), width: h.width, height: h.height, connected: !h.input_tx.is_closed() }
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}).collect()
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}
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}
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impl Clone for RdpService {
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fn clone(&self) -> Self {
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Self { sessions: self.sessions.clone() }
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}
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}
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fn build_connector_config(config: &RdpConfig) -> Result<connector::Config, String> {
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Ok(connector::Config {
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credentials: Credentials::UsernamePassword { username: config.username.clone(), password: config.password.clone() },
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domain: config.domain.clone(),
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enable_tls: false,
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enable_credssp: true,
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keyboard_type: KeyboardType::IbmEnhanced,
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keyboard_subtype: 0,
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keyboard_layout: 0,
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keyboard_functional_keys_count: 12,
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ime_file_name: String::new(),
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dig_product_id: String::new(),
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desktop_size: DesktopSize { width: config.width, height: config.height },
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bitmap: None,
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client_build: 0,
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client_name: "Wraith Desktop".to_owned(),
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client_dir: r"C:\Windows\System32\mstscax.dll".to_owned(),
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#[cfg(windows)]
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platform: MajorPlatformType::WINDOWS,
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#[cfg(target_os = "macos")]
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platform: MajorPlatformType::MACINTOSH,
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#[cfg(target_os = "linux")]
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platform: MajorPlatformType::UNIX,
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#[cfg(not(any(windows, target_os = "macos", target_os = "linux")))]
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platform: MajorPlatformType::UNIX,
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enable_server_pointer: true,
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pointer_software_rendering: true,
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request_data: None,
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autologon: false,
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enable_audio_playback: false,
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performance_flags: PerformanceFlags::default(),
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desktop_scale_factor: 0,
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hardware_id: None,
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license_cache: None,
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timezone_info: TimezoneInfo::default(),
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})
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}
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trait AsyncReadWrite: AsyncRead + AsyncWrite + 'static {}
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impl<T: AsyncRead + AsyncWrite + 'static> AsyncReadWrite for T {}
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type UpgradedFramed = TokioFramed<Box<dyn AsyncReadWrite + Unpin + Send + Sync + 'static>>;
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async fn establish_connection(config: connector::Config, hostname: &str, port: u16) -> Result<(ConnectionResult, UpgradedFramed), String> {
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let addr = format!("{}:{}", hostname, port);
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let stream = TcpStream::connect(&addr).await.map_err(|e| format!("TCP connect to {} failed: {}", addr, e))?;
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let client_addr = stream.local_addr().map_err(|e| format!("Failed to get local address: {}", e))?;
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let mut framed = TokioFramed::new(stream);
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let mut connector = ClientConnector::new(config, client_addr);
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let should_upgrade = ironrdp_tokio::connect_begin(&mut framed, &mut connector).await.map_err(|e| format!("RDP connect_begin failed: {}", e))?;
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let (initial_stream, leftover_bytes) = framed.into_inner();
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let (tls_stream, tls_cert) = ironrdp_tls::upgrade(initial_stream, hostname).await.map_err(|e| format!("TLS upgrade failed: {}", e))?;
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let upgraded = ironrdp_tokio::mark_as_upgraded(should_upgrade, &mut connector);
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let erased_stream: Box<dyn AsyncReadWrite + Unpin + Send + Sync> = Box::new(tls_stream);
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let mut upgraded_framed = TokioFramed::new_with_leftover(erased_stream, leftover_bytes);
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let server_public_key = ironrdp_tls::extract_tls_server_public_key(&tls_cert).ok_or_else(|| "Failed to extract TLS server public key".to_string())?.to_owned();
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let connection_result = ironrdp_tokio::connect_finalize(upgraded, connector, &mut upgraded_framed, &mut ReqwestNetworkClient::new(), hostname.into(), server_public_key, None).await.map_err(|e| format!("RDP connect_finalize failed: {}", e))?;
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Ok((connection_result, upgraded_framed))
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}
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async fn run_active_session(connection_result: ConnectionResult, framed: UpgradedFramed, frame_buffer: Arc<TokioMutex<Vec<u8>>>, frame_dirty: Arc<AtomicBool>, mut input_rx: mpsc::UnboundedReceiver<InputEvent>, width: u16, height: u16) -> Result<(), String> {
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let (mut reader, mut writer) = split_tokio_framed(framed);
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let mut image = DecodedImage::new(PixelFormat::RgbA32, width, height);
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let mut active_stage = ActiveStage::new(connection_result);
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let mut input_db = rdp_input::Database::new();
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loop {
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let outputs = tokio::select! {
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frame = reader.read_pdu() => {
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let (action, payload) = frame.map_err(|e| format!("Failed to read RDP frame: {}", e))?;
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active_stage.process(&mut image, action, &payload).map_err(|e| format!("Failed to process RDP frame: {}", e))?
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}
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input_event = input_rx.recv() => {
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match input_event {
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Some(InputEvent::Disconnect) | None => {
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if let Ok(outputs) = active_stage.graceful_shutdown() {
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for out in outputs { if let ActiveStageOutput::ResponseFrame(frame) = out { let _ = writer.write_all(&frame).await; } }
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}
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return Ok(());
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}
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Some(InputEvent::Mouse { x, y, flags }) => {
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let ops = translate_mouse_flags(x, y, flags);
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let events = input_db.apply(ops);
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active_stage.process_fastpath_input(&mut image, &events).map_err(|e| format!("Failed to process mouse input: {}", e))?
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}
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Some(InputEvent::Key { scancode, pressed }) => {
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let sc = Scancode::from_u16(scancode);
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let op = if pressed { Operation::KeyPressed(sc) } else { Operation::KeyReleased(sc) };
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let events = input_db.apply([op]);
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active_stage.process_fastpath_input(&mut image, &events).map_err(|e| format!("Failed to process keyboard input: {}", e))?
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}
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Some(InputEvent::Clipboard(text)) => {
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let shift_sc = Scancode::from_u16(0x002A);
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let mut all_outputs = Vec::new();
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for ch in text.chars() {
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if let Some((sc_val, shift)) = char_to_scancode(ch) {
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let sc = Scancode::from_u16(sc_val);
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if shift {
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let evts = input_db.apply([Operation::KeyPressed(shift_sc)]);
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all_outputs.extend(active_stage.process_fastpath_input(&mut image, &evts).map_err(|e| format!("clipboard input error: {}", e))?);
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}
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let evts = input_db.apply([Operation::KeyPressed(sc)]);
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all_outputs.extend(active_stage.process_fastpath_input(&mut image, &evts).map_err(|e| format!("clipboard input error: {}", e))?);
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let evts = input_db.apply([Operation::KeyReleased(sc)]);
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all_outputs.extend(active_stage.process_fastpath_input(&mut image, &evts).map_err(|e| format!("clipboard input error: {}", e))?);
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if shift {
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let evts = input_db.apply([Operation::KeyReleased(shift_sc)]);
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all_outputs.extend(active_stage.process_fastpath_input(&mut image, &evts).map_err(|e| format!("clipboard input error: {}", e))?);
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}
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}
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}
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all_outputs
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}
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}
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}
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};
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for out in outputs {
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match out {
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ActiveStageOutput::ResponseFrame(frame) => { writer.write_all(&frame).await.map_err(|e| format!("Failed to write RDP response frame: {}", e))?; }
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ActiveStageOutput::GraphicsUpdate(_region) => {
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let mut buf = frame_buffer.lock().await;
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let src = image.data();
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if src.len() == buf.len() { buf.copy_from_slice(src); } else { *buf = src.to_vec(); }
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frame_dirty.store(true, Ordering::Relaxed);
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}
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ActiveStageOutput::Terminate(reason) => { info!("RDP session terminated: {:?}", reason); return Ok(()); }
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ActiveStageOutput::DeactivateAll(_) => { warn!("RDP server sent DeactivateAll — reconnection not yet implemented"); return Ok(()); }
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_ => {}
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}
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}
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}
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}
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/// Map an ASCII character to (scancode, needs_shift) for RDP keystroke injection.
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fn char_to_scancode(ch: char) -> Option<(u16, bool)> {
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match ch {
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'a'..='z' => {
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let offsets: &[u16] = &[
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0x1E, 0x30, 0x2E, 0x20, 0x12, 0x21, 0x22, 0x23, 0x17, 0x24,
|
|
0x25, 0x26, 0x32, 0x31, 0x18, 0x19, 0x10, 0x13, 0x1F, 0x14,
|
|
0x16, 0x2F, 0x11, 0x2D, 0x15, 0x2C,
|
|
];
|
|
Some((offsets[(ch as u8 - b'a') as usize], false))
|
|
}
|
|
'A'..='Z' => {
|
|
char_to_scancode(ch.to_ascii_lowercase()).map(|(sc, _)| (sc, true))
|
|
}
|
|
'0' => Some((0x0B, false)),
|
|
'1'..='9' => Some(((ch as u16 - '0' as u16) + 1, false)),
|
|
')' => Some((0x0B, true)),
|
|
'!' => Some((0x02, true)),
|
|
'@' => Some((0x03, true)),
|
|
'#' => Some((0x04, true)),
|
|
'$' => Some((0x05, true)),
|
|
'%' => Some((0x06, true)),
|
|
'^' => Some((0x07, true)),
|
|
'&' => Some((0x08, true)),
|
|
'*' => Some((0x09, true)),
|
|
'(' => Some((0x0A, true)),
|
|
'-' => Some((0x0C, false)),
|
|
'_' => Some((0x0C, true)),
|
|
'=' => Some((0x0D, false)),
|
|
'+' => Some((0x0D, true)),
|
|
'[' => Some((0x1A, false)),
|
|
'{' => Some((0x1A, true)),
|
|
']' => Some((0x1B, false)),
|
|
'}' => Some((0x1B, true)),
|
|
'\\' => Some((0x2B, false)),
|
|
'|' => Some((0x2B, true)),
|
|
';' => Some((0x27, false)),
|
|
':' => Some((0x27, true)),
|
|
'\'' => Some((0x28, false)),
|
|
'"' => Some((0x28, true)),
|
|
',' => Some((0x33, false)),
|
|
'<' => Some((0x33, true)),
|
|
'.' => Some((0x34, false)),
|
|
'>' => Some((0x34, true)),
|
|
'/' => Some((0x35, false)),
|
|
'?' => Some((0x35, true)),
|
|
'`' => Some((0x29, false)),
|
|
'~' => Some((0x29, true)),
|
|
' ' => Some((0x39, false)),
|
|
'\n' | '\r' => Some((0x1C, false)),
|
|
'\t' => Some((0x0F, false)),
|
|
_ => None,
|
|
}
|
|
}
|
|
|
|
fn translate_mouse_flags(x: u16, y: u16, flags: u32) -> Vec<Operation> {
|
|
let mut ops = Vec::new();
|
|
let pos = MousePosition { x, y };
|
|
if flags & mouse_flags::MOVE != 0 { ops.push(Operation::MouseMove(pos)); }
|
|
let is_down = flags & mouse_flags::DOWN != 0;
|
|
if flags & mouse_flags::BUTTON1 != 0 { if is_down { ops.push(Operation::MouseButtonPressed(MouseButton::Left)); } else { ops.push(Operation::MouseButtonReleased(MouseButton::Left)); } }
|
|
if flags & mouse_flags::BUTTON2 != 0 { if is_down { ops.push(Operation::MouseButtonPressed(MouseButton::Right)); } else { ops.push(Operation::MouseButtonReleased(MouseButton::Right)); } }
|
|
if flags & mouse_flags::BUTTON3 != 0 { if is_down { ops.push(Operation::MouseButtonPressed(MouseButton::Middle)); } else { ops.push(Operation::MouseButtonReleased(MouseButton::Middle)); } }
|
|
if flags & mouse_flags::WHEEL != 0 { let units: i16 = if flags & mouse_flags::WHEEL_NEG != 0 { -120 } else { 120 }; ops.push(Operation::WheelRotations(WheelRotations { is_vertical: true, rotation_units: units })); }
|
|
if flags & mouse_flags::HWHEEL != 0 { let units: i16 = if flags & mouse_flags::WHEEL_NEG != 0 { -120 } else { 120 }; ops.push(Operation::WheelRotations(WheelRotations { is_vertical: false, rotation_units: units })); }
|
|
if ops.is_empty() { ops.push(Operation::MouseMove(pos)); }
|
|
ops
|
|
}
|