Initial working implementation (MVP)

This commit is contained in:
Martino Ferrari
2026-04-11 21:11:15 +02:00
parent dca378b5ef
commit 1a39b3a54e
35 changed files with 7457 additions and 147 deletions
+24
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[package]
name = "rmon-ui"
version.workspace = true
edition.workspace = true
authors.workspace = true
license.workspace = true
[dependencies]
eframe = "0.24"
egui = "0.24"
egui_plot = "0.24"
tokio = { workspace = true, features = ["full"] }
tracing.workspace = true
tracing-subscriber.workspace = true
serde.workspace = true
bincode.workspace = true
rmon-common.workspace = true
anyhow.workspace = true
futures.workspace = true
tokio-util.workspace = true
bytes.workspace = true
chrono.workspace = true
itertools.workspace = true
libc.workspace = true
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use eframe::egui;
use crate::connection::ProtocolClient;
use crate::state::SessionState;
use crate::state::SignalHistory;
use rmon_common::protocol::{ClientMessage, AgentMessage};
use std::sync::{Arc, Mutex};
use tokio::sync::{mpsc, oneshot};
use tokio::time::sleep;
use egui_plot::{Line, Plot, PlotPoints};
use std::collections::VecDeque;
#[derive(Clone)]
pub enum UiMessage {
Agent(AgentMessage),
Connected(Arc<ProtocolClient>),
Tunnel(Arc<Mutex<Option<std::process::Child>>>),
Disconnected,
Error(String),
Log(String),
}
pub struct RMonApp {
pub(crate) ssh_host: String,
pub(crate) agent_port: u16,
pub(crate) addr: String,
pub(crate) show_connect_dialog: bool,
pub(crate) show_config_editor: bool,
pub(crate) pending_input_request: Option<(String, oneshot::Sender<String>)>,
pub(crate) input_value: String,
pub(crate) config_text: String,
pub(crate) last_error: Option<String>,
pub(crate) logs: VecDeque<String>,
pub(crate) state: Arc<Mutex<SessionState>>,
pub(crate) client: Option<Arc<ProtocolClient>>,
pub(crate) tunnel_child: Option<Arc<Mutex<Option<std::process::Child>>>>,
pub(crate) ui_rx: mpsc::Receiver<UiMessage>,
pub(crate) ui_tx: mpsc::Sender<UiMessage>,
pub(crate) selected_signals: Vec<String>,
}
impl RMonApp {
pub fn new(_cc: &eframe::CreationContext<'_>) -> Self {
let (tx, rx) = mpsc::channel(100);
let app = Self {
ssh_host: "localhost".to_string(),
agent_port: 7891,
addr: "127.0.0.1:7891".to_string(),
show_connect_dialog: false,
show_config_editor: false,
pending_input_request: None,
input_value: String::new(),
config_text: String::new(),
last_error: None,
logs: VecDeque::with_capacity(100),
state: Arc::new(Mutex::new(SessionState::new())),
client: None,
tunnel_child: None,
ui_rx: rx,
ui_tx: tx,
selected_signals: Vec::new(),
};
let temp_dir = std::env::temp_dir();
let _ = std::fs::remove_file(temp_dir.join(format!("rmon_auth_req_{}", app.agent_port)));
let _ = std::fs::remove_file(temp_dir.join(format!("rmon_auth_res_{}", app.agent_port)));
app
}
fn add_log(&mut self, msg: String) {
if self.logs.len() >= 100 { self.logs.pop_front(); }
self.logs.push_back(msg);
}
fn update_from_agent(&mut self, ctx: &egui::Context) {
let temp_dir = std::env::temp_dir();
let req_path = temp_dir.join(format!("rmon_auth_req_{}", self.agent_port));
if req_path.exists() && self.pending_input_request.is_none() {
if let Ok(prompt) = std::fs::read_to_string(&req_path) {
// Delete immediately so we don't re-trigger on next frame
let _ = std::fs::remove_file(&req_path);
let (tx, rx) = oneshot::channel();
self.pending_input_request = Some((prompt, tx));
self.input_value.clear();
let port = self.agent_port;
tokio::spawn(async move {
if let Ok(val) = rx.await {
let res_path = std::env::temp_dir().join(format!("rmon_auth_res_{}", port));
let _ = std::fs::write(&res_path, val);
}
});
}
}
while let Ok(msg) = self.ui_rx.try_recv() {
ctx.request_repaint();
self.process_ui_message(msg);
}
}
fn process_ui_message(&mut self, msg: UiMessage) {
match msg {
UiMessage::Log(log) => self.add_log(log),
UiMessage::Tunnel(child) => {
self.add_log("SSH tunnel established".to_string());
self.tunnel_child = Some(child);
}
UiMessage::Connected(client) => {
self.add_log("Agent connected".to_string());
self.client = Some(client);
self.state.lock().unwrap().connected = true;
self.show_connect_dialog = false;
self.last_error = None;
let client_clone = self.client.as_ref().unwrap().clone();
tokio::spawn(async move { let _ = client_clone.send(ClientMessage::GetConfig).await; });
}
UiMessage::Disconnected => {
self.add_log("Session ended".to_string());
self.client = None;
self.state.lock().unwrap().connected = false;
if let Some(child_lock) = self.tunnel_child.take() {
if let Ok(mut child) = child_lock.lock() {
if let Some(mut c) = child.take() { let _ = c.kill(); }
}
}
}
UiMessage::Error(err) => {
self.add_log(format!("ERROR: {}", err));
self.last_error = Some(err);
}
UiMessage::Agent(AgentMessage::SignalList { signals }) => {
self.add_log(format!("Received signal list ({} signals)", signals.len()));
let mut state = self.state.lock().unwrap();
for sig in signals {
state.signals.entry(sig.id.clone()).or_insert_with(|| Arc::new(Mutex::new(SignalHistory::new(sig))));
}
}
UiMessage::Agent(AgentMessage::ConfigReport { config_toml }) => { self.config_text = config_toml; }
UiMessage::Agent(AgentMessage::DataBatch { batches }) => {
let mut new_ids = Vec::new();
{
let state = self.state.lock().unwrap();
for batch in batches {
if let Some(history) = state.signals.get(&batch.id) {
let mut history = history.lock().unwrap();
let is_first = history.samples.is_empty();
for sample in batch.samples { history.push(sample); }
if is_first { new_ids.push(batch.id.clone()); }
}
}
}
for id in new_ids { self.add_log(format!("Data start for {}", id)); }
}
UiMessage::Agent(AgentMessage::Error { context, message }) => { self.add_log(format!("AGENT ERROR ({}): {}", context, message)); }
_ => {}
}
}
fn draw_auth_dialog(&mut self, ctx: &egui::Context) {
if self.pending_input_request.is_some() {
let prompt = self.pending_input_request.as_ref().unwrap().0.clone();
let mut open = true;
egui::Window::new("SSH Authentication Required").open(&mut open).collapsible(false).resizable(false).show(ctx, |ui| {
ui.label(egui::RichText::new(&prompt).strong());
ui.add_space(8.0);
let is_password = prompt.to_lowercase().contains("password");
let text_edit = egui::TextEdit::singleline(&mut self.input_value).password(is_password);
let response = ui.add(text_edit);
response.request_focus();
ui.add_space(10.0);
if ui.button("Confirm").clicked() || (response.lost_focus() && ui.input(|i| i.key_pressed(egui::Key::Enter))) {
if let Some((_, tx)) = self.pending_input_request.take() { let _ = tx.send(self.input_value.clone()); }
}
});
if !open { self.pending_input_request = None; }
}
}
fn draw_connect_dialog(&mut self, ctx: &egui::Context) {
let mut open = self.show_connect_dialog;
egui::Window::new("Connect to Agent").open(&mut open).show(ctx, |ui| {
if let Some(err) = &self.last_error { ui.colored_label(egui::Color32::RED, format!("{}", err)); }
egui::Grid::new("connect_grid").num_columns(2).show(ui, |ui| {
ui.label("SSH Host:"); ui.text_edit_singleline(&mut self.ssh_host); ui.end_row();
ui.label("Agent Port:"); ui.add(egui::DragValue::new(&mut self.agent_port)); ui.end_row();
ui.label("Local TCP Addr:"); ui.text_edit_singleline(&mut self.addr); ui.end_row();
});
if ui.button("🚀 Connect").clicked() {
let (ssh_host, agent_port, addr, ui_tx) = (self.ssh_host.clone(), self.agent_port, self.addr.clone(), self.ui_tx.clone());
tokio::spawn(async move {
use crate::connection::SshConnection;
let ssh = SshConnection::new(ssh_host.clone(), agent_port);
let is_localhost = ssh_host == "localhost" || ssh_host == "127.0.0.1";
let local_port = addr.split(':').last().and_then(|p| p.parse::<u16>().ok()).unwrap_or(7891);
let skip_tunnel = is_localhost && local_port == agent_port;
let _ = ui_tx.send(UiMessage::Log("Preparing...".to_string())).await;
let _ = ssh.kill_local_orphan_tunnels();
if let Err(e) = ssh.establish_master() { let _ = ui_tx.send(UiMessage::Error(format!("SSH Auth failed: {}", e))).await; return; }
match ssh.check_running() {
Ok(false) => {
let _ = ui_tx.send(UiMessage::Log("Deploying and starting agent...".to_string())).await;
if let Err(e) = ssh.start_agent() { let _ = ui_tx.send(UiMessage::Error(format!("Start failed: {}", e))).await; return; }
sleep(std::time::Duration::from_secs(1)).await;
}
_ => { let _ = ui_tx.send(UiMessage::Log("Agent already running".to_string())).await; }
}
if !skip_tunnel {
let _ = ui_tx.send(UiMessage::Log("Establishing SSH tunnel...".to_string())).await;
match ssh.create_tunnel() {
Ok(child) => { let _ = ui_tx.send(UiMessage::Tunnel(Arc::new(Mutex::new(Some(child))))).await; sleep(std::time::Duration::from_secs(1)).await; }
Err(e) => { let _ = ui_tx.send(UiMessage::Error(format!("Tunnel failed: {}", e))).await; return; }
}
} else {
let _ = ui_tx.send(UiMessage::Log("Direct local connection".to_string())).await;
}
match ProtocolClient::connect(&addr, ui_tx.clone()).await {
Ok(client) => { let _ = ui_tx.send(UiMessage::Connected(Arc::new(client))).await; }
Err(e) => {
let _ = ui_tx.send(UiMessage::Error(format!("Handshake failed: {}", e))).await;
let _ = ssh.close_master();
let _ = ui_tx.send(UiMessage::Disconnected).await;
}
}
});
}
});
self.show_connect_dialog = open;
}
}
impl eframe::App for RMonApp {
fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
self.update_from_agent(ctx);
if self.pending_input_request.is_some() { self.draw_auth_dialog(ctx); }
if self.show_connect_dialog { self.draw_connect_dialog(ctx); }
if self.show_config_editor {
let mut open = self.show_config_editor;
egui::Window::new("Agent Configuration").open(&mut open).show(ctx, |ui| {
ui.add(egui::TextEdit::multiline(&mut self.config_text).font(egui::TextStyle::Monospace).desired_width(f32::INFINITY));
if ui.button("💾 Save & Apply").clicked() {
if let Some(client) = &self.client {
let client = client.clone();
let config_toml = self.config_text.clone();
tokio::spawn(async move {
let _ = client.send(ClientMessage::UpdateConfig { config_toml }).await;
sleep(std::time::Duration::from_millis(1500)).await;
let _ = client.send(ClientMessage::ListSignals).await;
});
}
}
if ui.button("🔄 Refresh").clicked() {
if let Some(client) = &self.client {
let client = client.clone();
tokio::spawn(async move {
let _ = client.send(ClientMessage::GetConfig).await;
let _ = client.send(ClientMessage::ListSignals).await;
});
}
}
});
self.show_config_editor = open;
}
egui::TopBottomPanel::top("top_panel").show(ctx, |ui| {
egui::menu::bar(ui, |ui| {
ui.menu_button("File", |ui| { if ui.button("Quit").clicked() { ctx.send_viewport_cmd(egui::ViewportCommand::Close); } });
ui.separator();
if self.client.is_none() {
if ui.button("🚀 Connect...").clicked() { self.last_error = None; self.show_connect_dialog = true; }
} else {
if ui.button("🔌 Disconnect").clicked() { let _ = self.ui_tx.try_send(UiMessage::Disconnected); }
if ui.button("💀 Kill Agent").clicked() {
let (host, port, tx) = (self.ssh_host.clone(), self.agent_port, self.ui_tx.clone());
tokio::spawn(async move {
use crate::connection::SshConnection;
let ssh = SshConnection::new(host, port);
let _ = tx.send(UiMessage::Log("Killing agent...".to_string())).await;
let _ = ssh.kill_agent();
});
let _ = self.ui_tx.try_send(UiMessage::Disconnected);
}
if ui.button("⚙ Configure Agent").clicked() { self.show_config_editor = true; }
}
});
});
egui::TopBottomPanel::bottom("log_panel").resizable(true).default_height(100.0).show(ctx, |ui| {
ui.heading("Logs");
egui::ScrollArea::vertical().stick_to_bottom(true).show(ui, |ui| {
for log in &self.logs { ui.label(egui::RichText::new(log).monospace()); }
});
});
egui::SidePanel::left("left_panel").show(ctx, |ui| {
ui.heading("Signals");
let state = self.state.lock().unwrap();
let mut ids: Vec<_> = state.signals.keys().cloned().collect();
ids.sort();
egui::ScrollArea::vertical().show(ui, |ui| {
for id in ids {
if let Some(history) = state.signals.get(&id) {
let history = history.lock().unwrap();
let mut checked = self.selected_signals.contains(&id);
if ui.checkbox(&mut checked, &history.info.label).changed() {
if checked {
self.selected_signals.push(id.clone());
if let Some(client) = &self.client {
let client = client.clone();
tokio::spawn(async move { let _ = client.send(ClientMessage::Subscribe { ids: vec![id], from_ns: None }).await; });
}
} else { self.selected_signals.retain(|s| s != &id); }
}
}
}
});
});
egui::CentralPanel::default().show(ctx, |ui| {
ui.heading("Plots");
egui::ScrollArea::vertical().show(ui, |ui| {
let state = self.state.lock().unwrap();
for id in &self.selected_signals {
if let Some(history) = state.signals.get(id) {
let history = history.lock().unwrap();
ui.label(format!("{} [{}]", history.info.label, history.samples.len()));
if !history.samples.is_empty() {
let first_ts = history.samples[0].timestamp as f64 / 1e9;
let points: PlotPoints = history.samples.iter().map(|s| [(s.timestamp as f64 / 1e9) - first_ts, s.value]).collect();
Plot::new(id).view_aspect(2.5).auto_bounds_x().auto_bounds_y().show(ui, |plot_ui| plot_ui.line(Line::new(points)));
} else { ui.label("Waiting for data..."); }
}
}
});
});
ctx.request_repaint_after(std::time::Duration::from_millis(100));
}
}
#[cfg(test)]
mod tests {
use super::*;
use rmon_common::signal::{SignalInfo, SourceType};
#[test]
fn test_app_init() {
let (tx, rx) = mpsc::channel(100);
let app = RMonApp {
ssh_host: "h".to_string(),
agent_port: 1,
addr: "a".to_string(),
show_connect_dialog: false,
show_config_editor: false,
pending_input_request: None,
input_value: "".to_string(),
config_text: "".to_string(),
last_error: None,
logs: VecDeque::new(),
state: Arc::new(Mutex::new(SessionState::new())),
client: None,
tunnel_child: None,
ui_rx: rx,
ui_tx: tx,
selected_signals: vec![],
};
assert_eq!(app.ssh_host, "h");
}
#[test]
fn test_process_ui_message_logic() {
let (tx, rx) = mpsc::channel(100);
let mut app = RMonApp {
ssh_host: "h".to_string(),
agent_port: 1,
addr: "a".to_string(),
show_connect_dialog: false,
show_config_editor: false,
pending_input_request: None,
input_value: "".to_string(),
config_text: "".to_string(),
last_error: None,
logs: VecDeque::new(),
state: Arc::new(Mutex::new(SessionState::new())),
client: None,
tunnel_child: None,
ui_rx: rx,
ui_tx: tx,
selected_signals: vec![],
};
app.process_ui_message(UiMessage::Log("test log".to_string()));
assert_eq!(app.logs.len(), 1);
assert_eq!(app.logs[0], "test log");
app.process_ui_message(UiMessage::Error("test err".to_string()));
assert_eq!(app.last_error.as_ref().unwrap(), "test err");
let sig = SignalInfo {
id: "s1".to_string(), label: "L".to_string(), unit: "V".to_string(), scale: 1.0, offset: 0.0,
sampling_period: None, source_type: SourceType::Csv, path: vec![],
};
app.process_ui_message(UiMessage::Agent(AgentMessage::SignalList { signals: vec![sig] }));
assert_eq!(app.state.lock().unwrap().signals.len(), 1);
app.process_ui_message(UiMessage::Agent(AgentMessage::ConfigReport { config_toml: "cfg".to_string() }));
assert_eq!(app.config_text, "cfg");
app.process_ui_message(UiMessage::Disconnected);
assert!(!app.state.lock().unwrap().connected);
}
}
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use anyhow::Result;
use tokio::net::TcpStream;
use tokio_util::codec::{Framed, Decoder, Encoder};
use futures::{StreamExt, SinkExt};
use rmon_common::protocol::{ClientMessage, AgentMessage, BincodeCodec, PROTOCOL_VERSION};
use bytes::BytesMut;
use std::io;
use tokio::sync::mpsc;
pub mod ssh;
pub use self::ssh::SshConnection;
pub struct ClientCodec;
impl Decoder for ClientCodec {
type Item = AgentMessage;
type Error = io::Error;
fn decode(&mut self, src: &mut BytesMut) -> Result<Option<Self::Item>, Self::Error> {
let mut codec = BincodeCodec::<AgentMessage>::default();
codec.decode(src)
}
}
impl Encoder<ClientMessage> for ClientCodec {
type Error = io::Error;
fn encode(&mut self, item: ClientMessage, dst: &mut BytesMut) -> Result<(), Self::Error> {
let mut codec = BincodeCodec::<ClientMessage>::default();
codec.encode(item, dst)
}
}
pub struct ProtocolClient {
tx: mpsc::Sender<ClientMessage>,
}
impl ProtocolClient {
pub async fn connect(addr: &str, ui_tx: mpsc::Sender<crate::app::UiMessage>) -> Result<Self> {
tracing::info!("Connecting to agent at {}...", addr);
let stream = TcpStream::connect(addr).await?;
let mut framed = Framed::new(stream, ClientCodec);
// 1. Handshake
framed.send(ClientMessage::Handshake {
protocol_version: PROTOCOL_VERSION,
client_version: env!("CARGO_PKG_VERSION").to_string(),
}).await?;
match framed.next().await {
Some(Ok(AgentMessage::HandshakeAck { accepted: true, .. })) => {
tracing::info!("Handshake accepted");
}
Some(Ok(AgentMessage::HandshakeAck { accepted: false, reject_reason, .. })) => {
return Err(anyhow::anyhow!("Handshake rejected: {}", reject_reason.unwrap_or_default()));
}
_ => return Err(anyhow::anyhow!("Handshake failed")),
}
let (tx, mut rx) = mpsc::channel::<ClientMessage>(100);
let ui_tx_clone = ui_tx.clone();
// Start message pump BEFORE sending ListSignals to ensure response is caught
tokio::spawn(async move {
tracing::debug!("UI message pump started");
loop {
tokio::select! {
msg_res = framed.next() => {
match msg_res {
Some(Ok(msg)) => {
if let Err(_) = ui_tx_clone.send(crate::app::UiMessage::Agent(msg)).await { break; }
}
Some(Err(e)) => {
let _ = ui_tx_clone.send(crate::app::UiMessage::Error(format!("Protocol error: {}", e))).await;
break;
}
None => {
let _ = ui_tx_clone.send(crate::app::UiMessage::Log("Agent closed connection".to_string())).await;
break;
}
}
}
cmd_opt = rx.recv() => {
match cmd_opt {
Some(cmd) => {
if let Err(e) = framed.send(cmd).await {
let _ = ui_tx_clone.send(crate::app::UiMessage::Error(format!("Send failed: {}", e))).await;
break;
}
}
None => break, // ProtocolClient handle dropped
}
}
}
}
let _ = ui_tx_clone.send(crate::app::UiMessage::Disconnected).await;
tracing::info!("UI message pump stopped");
});
// Now request signals
tx.send(ClientMessage::ListSignals).await?;
Ok(Self { tx })
}
pub async fn send(&self, msg: ClientMessage) -> Result<()> {
self.tx.send(msg).await.map_err(|_| anyhow::anyhow!("Disconnected"))
}
}
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use anyhow::Result;
use std::process::{Command, Stdio, Child};
use std::io::Write;
use std::path::PathBuf;
use std::fs;
use std::os::unix::fs::PermissionsExt;
use std::os::unix::process::CommandExt;
use std::time::Duration;
/// Embedded agent binaries for different architectures.
const AGENT_X86_64: &[u8] = include_bytes!("../../../target/x86_64-unknown-linux-musl/release/rmon-agent");
pub struct SshConnection {
host: String,
port: u16,
control_path: PathBuf,
}
impl SshConnection {
pub fn new(host: String, port: u16) -> Self {
let temp_dir = std::env::temp_dir();
// Use a unique socket path per host/port
let control_path = temp_dir.join(format!("rmon_ssh_sock_{}_{}", host.replace(".", "_"), port));
Self { host, port, control_path }
}
fn setup_askpass(&self) -> Result<PathBuf> {
let temp_dir = std::env::temp_dir();
let askpass_path = temp_dir.join(format!("rmon_askpass_{}", self.port));
let binary_path = std::env::current_exe()?;
let script = format!(
"#!/bin/sh\n\"{}\" --askpass-prompt \"$1\" --askpass-port {}\n",
binary_path.display(),
self.port
);
fs::write(&askpass_path, script)?;
let mut perms = fs::metadata(&askpass_path)?.permissions();
perms.set_mode(0o700);
fs::set_permissions(&askpass_path, perms)?;
Ok(askpass_path)
}
fn ssh_base(&self) -> Command {
let mut cmd = Command::new("ssh");
cmd.arg("-o").arg("RemoteCommand=none");
cmd.arg("-o").arg("StrictHostKeyChecking=no");
cmd.arg("-o").arg("ConnectTimeout=15");
cmd.arg("-o").arg(format!("ControlPath={}", self.control_path.display()));
cmd.arg(&self.host);
cmd
}
pub fn establish_master(&self) -> Result<()> {
if self.control_path.exists() {
let check = Command::new("ssh")
.arg("-o").arg(format!("ControlPath={}", self.control_path.display()))
.arg("-O").arg("check")
.arg(&self.host)
.output();
if let Ok(out) = check {
if out.status.success() {
return Ok(());
}
}
let _ = fs::remove_file(&self.control_path);
}
let askpass = self.setup_askpass()?;
tracing::info!("Establishing SSH master connection to {}...", self.host);
let mut cmd = Command::new("ssh");
cmd.arg("-o").arg("RemoteCommand=none");
cmd.arg("-o").arg("StrictHostKeyChecking=no");
cmd.arg("-o").arg("ControlMaster=yes");
cmd.arg("-o").arg("ControlPersist=30m");
cmd.arg("-o").arg(format!("ControlPath={}", self.control_path.display()));
cmd.arg("-o").arg("BatchMode=no");
cmd.env("SSH_ASKPASS", askpass);
cmd.env("SSH_ASKPASS_REQUIRE", "force");
cmd.env("DISPLAY", ":0");
cmd.arg("-T");
cmd.arg(&self.host);
cmd.arg("true");
cmd.stdin(Stdio::null());
unsafe { cmd.pre_exec(|| { libc::setsid(); Ok(()) }); }
let mut child = cmd.spawn()?;
let mut count = 0;
while !self.control_path.exists() && count < 3000 {
if let Ok(Some(status)) = child.try_wait() {
if !self.control_path.exists() {
return Err(anyhow::anyhow!("SSH authentication failed (status: {})", status));
}
break;
}
std::thread::sleep(Duration::from_millis(100));
count += 1;
}
if !self.control_path.exists() {
let _ = child.kill();
return Err(anyhow::anyhow!("Authentication timed out (5m limit reached)"));
}
Ok(())
}
pub fn kill_local_orphan_tunnels(&self) -> Result<()> {
let pattern = format!("rmon_ssh_sock_{}_{}", self.host.replace(".", "_"), self.port);
let _ = Command::new("pkill").arg("-f").arg(&pattern).output();
let _ = fs::remove_file(&self.control_path);
let fwd_pattern = format!("-L {}:127.0.0.1:{}", self.port, self.port);
let _ = Command::new("pkill").arg("-f").arg(&fwd_pattern).output();
Ok(())
}
pub fn deploy_agent(&self) -> Result<()> {
let mut child = self.ssh_base()
.arg("mkdir -p ~/.rmon && cat > ~/.rmon/agent && chmod +x ~/.rmon/agent")
.stdin(Stdio::piped())
.spawn()?;
let mut stdin = child.stdin.take().ok_or_else(|| anyhow::anyhow!("Failed to open stdin"))?;
stdin.write_all(AGENT_X86_64)?;
drop(stdin);
let status = child.wait()?;
if !status.success() { return Err(anyhow::anyhow!("Failed to upload agent binary")); }
Ok(())
}
pub fn check_running(&self) -> Result<bool> {
// More robust check: use ss or netstat to see if anything is listening on that port
// We look for the port followed by a space to avoid partial matches
let cmd = format!("(ss -tln || netstat -tln || true) | grep -q ':{} '", self.port);
let output = self.ssh_base()
.arg(cmd)
.output()?;
Ok(output.status.success())
}
pub fn start_agent(&self) -> Result<()> {
self.deploy_agent()?;
// Use absolute path for log file in home directory
let cmd = format!("nohup ~/.rmon/agent --bind 0.0.0.0 --port {} >> ~/.rmon/agent.log 2>&1 &", self.port);
let output = self.ssh_base()
.arg(cmd)
.output()?;
if !output.status.success() { return Err(anyhow::anyhow!("Failed to start agent")); }
Ok(())
}
pub fn create_tunnel(&self) -> Result<Child> {
let child = self.ssh_base()
.arg("-o").arg("ExitOnForwardFailure=yes")
.arg("-N")
.arg("-L").arg(format!("{}:127.0.0.1:{}", self.port, self.port))
.spawn()?;
Ok(child)
}
pub fn kill_agent(&self) -> Result<()> {
let _ = self.ssh_base().arg(format!("pkill -f \"~/.rmon/agent --port {}\"", self.port)).output();
Ok(())
}
pub fn close_master(&self) -> Result<()> {
let _ = Command::new("ssh")
.arg("-o").arg(format!("ControlPath={}", self.control_path.display()))
.arg("-O").arg("exit")
.arg(&self.host)
.output();
let _ = fs::remove_file(&self.control_path);
Ok(())
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_ssh_connection_init() {
let conn = SshConnection::new("myhost".to_string(), 1234);
assert_eq!(conn.host, "myhost");
assert_eq!(conn.port, 1234);
}
}
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use eframe::egui;
use tokio::runtime::Runtime;
mod app;
mod connection;
mod state;
mod ui;
use crate::app::RMonApp;
fn main() -> eframe::Result<()> {
let args: Vec<String> = std::env::args().collect();
// Check if we are being called as an askpass helper
if let Some(pos) = args.iter().position(|a| a == "--askpass-prompt") {
let prompt = args.get(pos + 1).cloned().unwrap_or_default();
let port = args.get(pos + 3).and_then(|p| p.parse::<u16>().ok()).unwrap_or(7891);
let temp_dir = std::env::temp_dir();
let request_path = temp_dir.join(format!("rmon_auth_req_{}", port));
let response_path = temp_dir.join(format!("rmon_auth_res_{}", port));
// Signal the UI that we need input
let _ = std::fs::write(&request_path, &prompt);
// Wait for response
let mut count = 0;
while !response_path.exists() && count < 600 { // 60s timeout
std::thread::sleep(std::time::Duration::from_millis(100));
count += 1;
}
if let Ok(res) = std::fs::read_to_string(&response_path) {
let _ = std::fs::remove_file(&request_path);
let _ = std::fs::remove_file(&response_path);
println!("{}", res.trim());
}
return Ok(());
}
tracing_subscriber::fmt()
.with_writer(std::io::stderr)
.with_env_filter(tracing_subscriber::EnvFilter::from_default_env())
.init();
// Create a tokio runtime in a separate thread for async communication
let rt = Runtime::new().expect("Unable to create Runtime");
let _enter = rt.enter();
std::thread::spawn(move || {
rt.block_on(async {
loop {
tokio::time::sleep(std::time::Duration::from_secs(3600)).await;
}
})
});
let native_options = eframe::NativeOptions {
viewport: egui::ViewportBuilder::default()
.with_inner_size([1280.0, 720.0]),
..Default::default()
};
eframe::run_native(
"RMon",
native_options,
Box::new(|cc| Box::new(RMonApp::new(cc))),
)
}
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use rmon_common::signal::{SignalId, SignalInfo, Sample};
use std::collections::{HashMap, VecDeque};
use std::sync::{Arc, Mutex};
pub struct SignalHistory {
pub info: SignalInfo,
pub samples: VecDeque<Sample>,
pub max_samples: usize,
}
impl SignalHistory {
pub fn new(info: SignalInfo) -> Self {
Self {
info,
samples: VecDeque::new(),
max_samples: 1000, // Default for display
}
}
pub fn push(&mut self, sample: Sample) {
self.samples.push_back(sample);
if self.samples.len() > self.max_samples {
self.samples.pop_front();
}
}
}
pub struct SessionState {
pub connected: bool,
pub signals: HashMap<SignalId, Arc<Mutex<SignalHistory>>>,
}
impl SessionState {
pub fn new() -> Self {
Self {
connected: false,
signals: HashMap::new(),
}
}
}
#[cfg(test)]
mod tests {
use super::*;
use rmon_common::signal::SourceType;
#[test]
fn test_signal_history_push() {
let info = SignalInfo {
id: "test://1".to_string(),
label: "L".to_string(),
unit: "U".to_string(),
scale: 1.0,
offset: 0.0,
sampling_period: None,
source_type: SourceType::Csv,
path: vec![],
};
let mut history = SignalHistory::new(info);
history.max_samples = 2;
history.push(Sample { timestamp: 1, value: 1.0 });
history.push(Sample { timestamp: 2, value: 2.0 });
history.push(Sample { timestamp: 3, value: 3.0 });
assert_eq!(history.samples.len(), 2);
assert_eq!(history.samples[0].timestamp, 2);
}
#[test]
fn test_session_state_init() {
let state = SessionState::new();
assert!(!state.connected);
assert!(state.signals.is_empty());
}
}
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// Placeholder for UI components