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edition = "2021"
[dependencies]
ratatui = "0.26"
crossterm = "0.27"
serde = { version = "1.0", features = ["derive"] }
serde_json = "1.0"
dirs = "5.0"
anyhow = "1.0"

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use anyhow::Result;
use ratatui::widgets::ListState;
use std::{fs, path::PathBuf};
use crate::server::Server;
pub enum InputMode {
Normal,
Adding(AddingState),
Editing(EditingState),
}
pub struct AddingState {
pub field_idx: usize,
pub name: String,
pub user: String,
pub host: String,
pub port: String,
}
impl AddingState {
pub fn new() -> Self {
Self {
field_idx: 0,
name: String::new(),
user: String::new(),
host: String::new(),
port: "22".to_string(),
}
}
}
pub struct EditingState {
pub server_index: usize,
pub field_idx: usize,
pub name: String,
pub user: String,
pub host: String,
pub port: String,
}
impl EditingState {
pub fn new(server: &Server, index: usize) -> Self {
Self {
server_index: index,
field_idx: 0,
name: server.name.clone(),
user: server.user.clone(),
host: server.host.clone(),
port: server.port.clone(),
}
}
}
pub struct App {
pub servers: Vec<Server>,
pub state: ListState,
pub input_mode: InputMode,
config_path: PathBuf,
}
impl App {
pub fn new() -> Result<Self> {
let config_dir = dirs::config_dir().unwrap_or_else(|| PathBuf::from("."));
let app_config_dir = config_dir.join("sshx");
if !app_config_dir.exists() {
fs::create_dir_all(&app_config_dir)?;
}
let config_path = app_config_dir.join("servers.json");
let servers = if config_path.exists() {
let data = fs::read_to_string(&config_path)?;
serde_json::from_str(&data).unwrap_or_else(|_| Vec::new())
} else {
Vec::new()
};
let mut state = ListState::default();
if !servers.is_empty() {
state.select(Some(0));
}
Ok(Self {
servers,
state,
input_mode: InputMode::Normal,
config_path,
})
}
pub fn save(&self) -> Result<()> {
let data = serde_json::to_string_pretty(&self.servers)?;
fs::write(&self.config_path, data)?;
Ok(())
}
pub fn next(&mut self) {
if self.servers.is_empty() {
return;
}
let i = match self.state.selected() {
Some(i) => {
if i >= self.servers.len() - 1 {
0
} else {
i + 1
}
}
None => 0,
};
self.state.select(Some(i));
}
pub fn previous(&mut self) {
if self.servers.is_empty() {
return;
}
let i = match self.state.selected() {
Some(i) => {
if i == 0 {
self.servers.len() - 1
} else {
i - 1
}
}
None => 0,
};
self.state.select(Some(i));
}
pub fn delete_current(&mut self) {
if let Some(i) = self.state.selected() {
if i < self.servers.len() {
self.servers.remove(i);
if self.servers.is_empty() {
self.state.select(None);
} else if i >= self.servers.len() {
self.state.select(Some(self.servers.len() - 1));
}
let _ = self.save();
}
}
}
}

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use crossterm::{
event::{DisableMouseCapture, EnableMouseCapture},
execute,
terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen},
};
use ratatui::{backend::Backend, Terminal};
use std::{
io,
process::Command,
};
pub fn run_external_command<B: Backend + std::io::Write>(
terminal: &mut Terminal<B>,
program: &str,
args: &[String],
) -> io::Result<()> {
// Drop TUI state
disable_raw_mode()?;
execute!(terminal.backend_mut(), LeaveAlternateScreen, DisableMouseCapture)?;
terminal.show_cursor()?;
// Run command
println!("Running {} {}...", program, args.join(" "));
let status = Command::new(program)
.args(args)
.status();
match status {
Ok(s) => {
if !s.success() {
println!("Command exited with status: {}", s);
println!("Press Enter to continue...");
let mut line = String::new();
std::io::stdin().read_line(&mut line)?;
}
}
Err(e) => {
println!("Failed to execute {}: {}", program, e);
println!("Press Enter to continue...");
let mut line = String::new();
std::io::stdin().read_line(&mut line)?;
}
}
// Restore TUI state
enable_raw_mode()?;
execute!(terminal.backend_mut(), EnterAlternateScreen, EnableMouseCapture)?;
terminal.clear()?;
Ok(())
}

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mod app;
mod server;
mod ui;
mod command;
use anyhow::Result;
use crossterm::{
event::{self, DisableMouseCapture, EnableMouseCapture, Event, KeyCode, KeyModifiers},
execute,
terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen},
};
use ratatui::{
backend::{Backend, CrosstermBackend},
Terminal,
};
use std::{
error::Error,
io,
};
use app::{App, InputMode, AddingState, EditingState};
use command::run_external_command;
use ui::ui;
use server::Server;
fn main() -> Result<(), Box<dyn Error>> {
// Setup terminal
enable_raw_mode()?;
let mut stdout = io::stdout();
execute!(stdout, EnterAlternateScreen, EnableMouseCapture)?;
let backend = CrosstermBackend::new(stdout);
let mut terminal = Terminal::new(backend)?;
// Create app
let mut app = App::new()?;
let res = run_app(&mut terminal, &mut app);
// Restore terminal
disable_raw_mode()?;
execute!(
terminal.backend_mut(),
LeaveAlternateScreen,
DisableMouseCapture
)?;
terminal.show_cursor()?;
if let Err(err) = res {
println!("{:?}", err);
}
Ok(())
}
fn run_app<B: Backend + std::io::Write>(terminal: &mut Terminal<B>, app: &mut App) -> io::Result<()> {
loop {
// Hide cursor in normal mode, show in input/edit mode
match app.input_mode {
InputMode::Normal => terminal.hide_cursor()?,
InputMode::Adding(_) | InputMode::Editing(_) => terminal.show_cursor()?,
}
terminal.draw(|f| ui(f, app))?;
if let Event::Key(key) = event::read()? {
match &mut app.input_mode {
InputMode::Normal => match key.code {
KeyCode::Char('q') | KeyCode::Esc => return Ok(()),
KeyCode::Down | KeyCode::Tab | KeyCode::Char('j') => app.next(),
KeyCode::Up | KeyCode::BackTab | KeyCode::Char('k') => app.previous(),
KeyCode::Char('n') => {
if key.modifiers.contains(KeyModifiers::SHIFT) {
// SSH Copy ID
if let Some(idx) = app.state.selected() {
let server = &app.servers[idx];
let args = server.to_copy_id_args();
run_external_command(terminal, "ssh-copy-id", &args)?;
}
} else {
// Add new server
app.input_mode = InputMode::Adding(AddingState::new());
}
}
KeyCode::Char('d') => {
app.delete_current();
}
KeyCode::Char('i') => {
// Edit server
if let Some(idx) = app.state.selected() {
let server = &app.servers[idx].clone();
app.input_mode = InputMode::Editing(EditingState::new(server, idx));
}
}
KeyCode::Char('m') => {
// Mosh
if let Some(idx) = app.state.selected() {
let server = &app.servers[idx];
let args = server.to_mosh_args();
run_external_command(terminal, "mosh", &args)?;
}
}
KeyCode::Enter => {
// SSH
if let Some(idx) = app.state.selected() {
let server = &app.servers[idx];
let args = server.to_ssh_args();
run_external_command(terminal, "ssh", &args)?;
}
}
_ => {}
},
InputMode::Editing(state) => match key.code {
KeyCode::Esc => app.input_mode = InputMode::Normal,
KeyCode::Char(c) => {
match state.field_idx {
0 => state.name.push(c),
1 => state.user.push(c),
2 => state.host.push(c),
3 => state.port.push(c),
_ => {}
}
}
KeyCode::Backspace => {
match state.field_idx {
0 => { state.name.pop(); },
1 => { state.user.pop(); },
2 => { state.host.pop(); },
3 => { state.port.pop(); },
_ => {}
}
}
KeyCode::Tab | KeyCode::Down => {
if state.field_idx < 3 {
state.field_idx += 1;
} else {
state.field_idx = 0;
}
}
KeyCode::BackTab | KeyCode::Up => {
if state.field_idx > 0 {
state.field_idx -= 1;
} else {
state.field_idx = 3;
}
}
KeyCode::Enter => {
// Validate and save
if !state.name.is_empty() && !state.host.is_empty() {
let updated_server = Server {
name: state.name.clone(),
user: if state.user.is_empty() { "root".to_string() } else { state.user.clone() },
host: state.host.clone(),
port: if state.port.is_empty() { "22".to_string() } else { state.port.clone() },
};
app.servers[state.server_index] = updated_server;
let _ = app.save();
app.input_mode = InputMode::Normal;
}
}
_ => {}
},
InputMode::Adding(state) => match key.code {
KeyCode::Esc => app.input_mode = InputMode::Normal,
KeyCode::Char(c) => {
match state.field_idx {
0 => state.name.push(c),
1 => state.user.push(c),
2 => state.host.push(c),
3 => state.port.push(c),
_ => {}
}
}
KeyCode::Backspace => {
match state.field_idx {
0 => { state.name.pop(); },
1 => { state.user.pop(); },
2 => { state.host.pop(); },
3 => { state.port.pop(); },
_ => {}
}
}
KeyCode::Tab | KeyCode::Down => {
if state.field_idx < 3 {
state.field_idx += 1;
} else {
state.field_idx = 0;
}
}
KeyCode::BackTab | KeyCode::Up => {
if state.field_idx > 0 {
state.field_idx -= 1;
} else {
state.field_idx = 3;
}
}
KeyCode::Enter => {
// Validate and save
if !state.name.is_empty() && !state.host.is_empty() {
let new_server = Server {
name: state.name.clone(),
user: if state.user.is_empty() { "root".to_string() } else { state.user.clone() },
host: state.host.clone(),
port: if state.port.is_empty() { "22".to_string() } else { state.port.clone() },
};
app.servers.push(new_server);
let _ = app.save();
app.state.select(Some(app.servers.len() - 1));
app.input_mode = InputMode::Normal;
}
}
_ => {}
},
}
}
}
}

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use serde::{Deserialize, Serialize};
#[derive(Serialize, Deserialize, Clone, Debug)]
pub struct Server {
pub name: String,
pub user: String,
pub host: String,
pub port: String,
}
impl Server {
pub fn address(&self) -> String {
format!("{}@{}", self.user, self.host)
}
pub fn to_ssh_args(&self) -> Vec<String> {
let mut args = vec![self.address()];
if !self.port.is_empty() {
args.push("-p".to_string());
args.push(self.port.clone());
}
args
}
pub fn to_mosh_args(&self) -> Vec<String> {
let mut args = vec![];
if !self.port.is_empty() {
args.push("--ssh".to_string());
args.push(format!("ssh -p {}", self.port));
}
args.push(self.address());
args
}
pub fn to_copy_id_args(&self) -> Vec<String> {
let mut args = vec![];
if !self.port.is_empty() {
args.push("-p".to_string());
args.push(self.port.clone());
}
args.push(self.address());
args
}
}

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use ratatui::{
layout::{Constraint, Direction, Layout, Rect},
style::{Color, Modifier, Style},
widgets::{Block, Borders, List, ListItem, Paragraph, Clear},
Frame,
};
use crate::app::{App, InputMode};
pub fn ui(f: &mut Frame, app: &mut App) {
let size = f.size();
let chunks = Layout::default()
.direction(Direction::Vertical)
.constraints([Constraint::Min(0), Constraint::Length(3)].as_ref())
.split(size);
let items: Vec<ListItem> = app
.servers
.iter()
.map(|s| {
let content = format!("{} ({}) - {}:{}", s.name, s.user, s.host, s.port);
ListItem::new(content).style(Style::default())
})
.collect();
let list = List::new(items)
.block(Block::default().borders(Borders::ALL).title(" SSHX - Servers "))
.highlight_style(Style::default().add_modifier(Modifier::BOLD).fg(Color::Yellow))
.highlight_symbol("> ");
f.render_stateful_widget(list, chunks[0], &mut app.state);
// Help text
let help_text = match app.input_mode {
InputMode::Normal => "Enter: Connect | m: Mosh | n: New | Shift+n: Copy ID | i: Edit | d: Delete | q: Quit | j/k: Up/Down",
InputMode::Adding(_) => "Enter: Save | Esc: Cancel | Tab: Next Field",
InputMode::Editing(_) => "Enter: Save | Esc: Cancel | Tab: Next Field",
};
let help = Paragraph::new(help_text)
.style(Style::default().fg(Color::Gray))
.block(Block::default().borders(Borders::ALL).title(" Help "));
f.render_widget(help, chunks[1]);
// Popup for Adding Server
if let InputMode::Adding(state) = &app.input_mode {
let block = Block::default().borders(Borders::ALL).title(" Add New Connection ");
let area = centered_rect(60, 40, size);
f.render_widget(Clear, area); // Clear the background
f.render_widget(block, area);
let input_layout = Layout::default()
.direction(Direction::Vertical)
.margin(2)
.constraints(
[
Constraint::Length(3), // Name
Constraint::Length(3), // User
Constraint::Length(3), // Host
Constraint::Length(3), // Port
Constraint::Min(1),
]
.as_ref(),
)
.split(area);
let fields = [
("Name", &state.name),
("User (default: root)", &state.user),
("Host/IP", &state.host),
("Port (default: 22)", &state.port),
];
for (i, (label, value)) in fields.iter().enumerate() {
let mut style = Style::default();
if state.field_idx == i {
style = style.fg(Color::Yellow);
}
let input = Paragraph::new(value.as_str())
.style(style)
.block(Block::default().borders(Borders::ALL).title(*label));
f.render_widget(input, input_layout[i]);
// Show cursor in the active input field
if state.field_idx == i {
f.set_cursor(
input_layout[i].x + value.len() as u16 + 1, // Position after the text
input_layout[i].y + 1, // Middle of the input area
);
}
}
}
// Popup for Editing Server
if let InputMode::Editing(state) = &app.input_mode {
let block = Block::default().borders(Borders::ALL).title(" Edit Connection ");
let area = centered_rect(60, 40, size);
f.render_widget(Clear, area); // Clear the background
f.render_widget(block, area);
let input_layout = Layout::default()
.direction(Direction::Vertical)
.margin(2)
.constraints(
[
Constraint::Length(3), // Name
Constraint::Length(3), // User
Constraint::Length(3), // Host
Constraint::Length(3), // Port
Constraint::Min(1),
]
.as_ref(),
)
.split(area);
let fields = [
("Name", &state.name),
("User (default: root)", &state.user),
("Host/IP", &state.host),
("Port (default: 22)", &state.port),
];
for (i, (label, value)) in fields.iter().enumerate() {
let mut style = Style::default();
if state.field_idx == i {
style = style.fg(Color::Yellow);
}
let input = Paragraph::new(value.as_str())
.style(style)
.block(Block::default().borders(Borders::ALL).title(*label));
f.render_widget(input, input_layout[i]);
// Show cursor in the active input field
if state.field_idx == i {
f.set_cursor(
input_layout[i].x + value.len() as u16 + 1, // Position after the text
input_layout[i].y + 1, // Middle of the input area
);
}
}
}
}
pub fn centered_rect(percent_x: u16, percent_y: u16, r: Rect) -> Rect {
let popup_layout = Layout::default()
.direction(Direction::Vertical)
.constraints(
[
Constraint::Percentage((100 - percent_y) / 2),
Constraint::Percentage(percent_y),
Constraint::Percentage((100 - percent_y) / 2),
]
.as_ref(),
)
.split(r);
Layout::default()
.direction(Direction::Horizontal)
.constraints(
[
Constraint::Percentage((100 - percent_x) / 2),
Constraint::Percentage(percent_x),
Constraint::Percentage((100 - percent_x) / 2),
]
.as_ref(),
)
.split(popup_layout[1])[1]
}