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Add web terminal for remote tablet/phone access to project terminals
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Browse Source 
Adds an axum HTTP+WebSocket server that runs alongside the Tauri app,
serving a standalone xterm.js-based terminal UI accessible from any
browser on the local network. Shares the existing ExecSessionManager
via Arc-wrapped stores, with token-based authentication and automatic
session cleanup on disconnect.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Josh Knapp
2026-03-17 19:31:16 -07:00
parent 13038989b8
commit 922543cc04
14 changed files with 1679 additions and 17 deletions
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app/src-tauri/src/web_terminal/terminal.html Normal file
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<title>Triple-C Web Terminal</title>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@xterm/xterm@5.5.0/css/xterm.min.css">
<script src="https://cdn.jsdelivr.net/npm/@xterm/xterm@5.5.0/lib/xterm.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/@xterm/addon-fit@0.10.0/lib/addon-fit.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/@xterm/addon-web-links@0.11.0/lib/addon-web-links.min.js"></script>
<style>
:root {
--bg-primary: #1a1b26;
--bg-secondary: #24283b;
--bg-tertiary: #2f3347;
--text-primary: #c0caf5;
--text-secondary: #565f89;
--accent: #7aa2f7;
--accent-hover: #89b4fa;
--border: #3b3f57;
--success: #9ece6a;
--warning: #e0af68;
--error: #f7768e;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
background: var(--bg-primary);
color: var(--text-primary);
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
height: 100vh;
display: flex;
flex-direction: column;
overflow: hidden;
-webkit-tap-highlight-color: transparent;
}
/* ── Top Bar ─────────────────────────────── */
.topbar {
display: flex;
align-items: center;
gap: 8px;
padding: 6px 12px;
background: var(--bg-secondary);
border-bottom: 1px solid var(--border);
flex-shrink: 0;
min-height: 42px;
}
.topbar-title {
font-size: 13px;
font-weight: 600;
color: var(--accent);
white-space: nowrap;
margin-right: 8px;
}
.status-dot {
width: 8px;
height: 8px;
border-radius: 50%;
background: var(--error);
flex-shrink: 0;
}
.status-dot.connected { background: var(--success); }
.status-dot.reconnecting { background: var(--warning); animation: pulse 1s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }
select, button {
font-size: 12px;
padding: 4px 8px;
background: var(--bg-tertiary);
color: var(--text-primary);
border: 1px solid var(--border);
border-radius: 4px;
cursor: pointer;
touch-action: manipulation;
}
select:focus, button:focus { outline: none; border-color: var(--accent); }
button:hover { background: var(--border); }
button:active { background: var(--accent); color: var(--bg-primary); }
.btn-new {
font-weight: 600;
min-width: 44px;
min-height: 32px;
}
/* ── Tab Bar ─────────────────────────────── */
.tabbar {
display: flex;
align-items: center;
gap: 1px;
padding: 0 8px;
background: var(--bg-secondary);
border-bottom: 1px solid var(--border);
flex-shrink: 0;
overflow-x: auto;
-webkit-overflow-scrolling: touch;
min-height: 32px;
}
.tab {
display: flex;
align-items: center;
gap: 6px;
padding: 6px 12px;
font-size: 11px;
color: var(--text-secondary);
cursor: pointer;
white-space: nowrap;
border-bottom: 2px solid transparent;
transition: all 0.15s;
min-height: 32px;
}
.tab:hover { color: var(--text-primary); }
.tab.active {
color: var(--text-primary);
border-bottom-color: var(--accent);
}
.tab-close {
display: inline-flex;
align-items: center;
justify-content: center;
width: 16px;
height: 16px;
border-radius: 3px;
font-size: 12px;
line-height: 1;
color: var(--text-secondary);
background: none;
border: none;
padding: 0;
min-width: unset;
min-height: unset;
}
.tab-close:hover { background: var(--error); color: white; }
/* ── Terminal Area ───────────────────────── */
.terminal-area {
flex: 1;
position: relative;
overflow: hidden;
}
.terminal-container {
position: absolute;
inset: 0;
display: none;
padding: 4px;
}
.terminal-container.active { display: block; }
/* ── Empty State ─────────────────────────── */
.empty-state {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
height: 100%;
color: var(--text-secondary);
font-size: 14px;
gap: 12px;
}
.empty-state .hint {
font-size: 12px;
opacity: 0.7;
}
/* ── Scrollbar ───────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
</style>
</head>
<body>
<!-- Top Bar -->
<div class="topbar">
<span class="topbar-title">Triple-C</span>
<span class="status-dot" id="statusDot"></span>
<select id="projectSelect" style="flex:1; max-width:240px;">
<option value="">Select project...</option>
</select>
<button class="btn-new" id="btnClaude" title="New Claude session">Claude</button>
<button class="btn-new" id="btnBash" title="New Bash session">Bash</button>
</div>
<!-- Tab Bar -->
<div class="tabbar" id="tabbar"></div>
<!-- Terminal Area -->
<div class="terminal-area" id="terminalArea">
<div class="empty-state" id="emptyState">
<div>Select a project and open a terminal session</div>
<div class="hint">Use the buttons above to start a Claude or Bash session</div>
</div>
</div>
<script>
(function() {
'use strict';
// ── State ──────────────────────────────────
const params = new URLSearchParams(window.location.search);
const TOKEN = params.get('token') || '';
let ws = null;
let reconnectTimer = null;
let sessions = {}; // { sessionId: { term, fitAddon, projectName, type, containerId } }
let activeSessionId = null;
// ── DOM refs ───────────────────────────────
const statusDot = document.getElementById('statusDot');
const projectSelect = document.getElementById('projectSelect');
const btnClaude = document.getElementById('btnClaude');
const btnBash = document.getElementById('btnBash');
const tabbar = document.getElementById('tabbar');
const terminalArea = document.getElementById('terminalArea');
const emptyState = document.getElementById('emptyState');
// ── WebSocket ──────────────────────────────
function connect() {
const proto = location.protocol === 'https:' ? 'wss:' : 'ws:';
const url = `${proto}//${location.host}/ws?token=${encodeURIComponent(TOKEN)}`;
ws = new WebSocket(url);
ws.onopen = () => {
statusDot.className = 'status-dot connected';
clearTimeout(reconnectTimer);
send({ type: 'list_projects' });
// Start keepalive
ws._pingInterval = setInterval(() => send({ type: 'ping' }), 30000);
};
ws.onmessage = (evt) => {
try {
const msg = JSON.parse(evt.data);
handleMessage(msg);
} catch (e) {
console.error('Parse error:', e);
}
};
ws.onclose = () => {
statusDot.className = 'status-dot reconnecting';
if (ws && ws._pingInterval) clearInterval(ws._pingInterval);
reconnectTimer = setTimeout(connect, 2000);
};
ws.onerror = () => {
ws.close();
};
}
function send(msg) {
if (ws && ws.readyState === WebSocket.OPEN) {
ws.send(JSON.stringify(msg));
}
}
// ── Message handling ───────────────────────
function handleMessage(msg) {
switch (msg.type) {
case 'projects':
updateProjectList(msg.projects);
break;
case 'opened':
onSessionOpened(msg.session_id, msg.project_name);
break;
case 'output':
onSessionOutput(msg.session_id, msg.data);
break;
case 'exit':
onSessionExit(msg.session_id);
break;
case 'error':
console.error('Server error:', msg.message);
// Show in active terminal if available
if (activeSessionId && sessions[activeSessionId]) {
sessions[activeSessionId].term.writeln(`\r\n\x1b[31mError: ${msg.message}\x1b[0m`);
}
break;
case 'pong':
break;
}
}
function updateProjectList(projects) {
const current = projectSelect.value;
projectSelect.innerHTML = '<option value="">Select project...</option>';
projects.forEach(p => {
const opt = document.createElement('option');
opt.value = p.id;
opt.textContent = `${p.name} (${p.status})`;
opt.disabled = p.status !== 'running';
projectSelect.appendChild(opt);
});
// Restore selection if still valid
if (current) projectSelect.value = current;
}
// ── Session management ─────────────────────
let pendingSessionType = null;
function openSession(type) {
const projectId = projectSelect.value;
if (!projectId) {
alert('Please select a running project first.');
return;
}
pendingSessionType = type;
send({
type: 'open',
project_id: projectId,
session_type: type,
});
}
function onSessionOpened(sessionId, projectName) {
const sessionType = pendingSessionType || 'claude';
pendingSessionType = null;
// Create terminal
const term = new Terminal({
theme: {
background: '#1a1b26',
foreground: '#c0caf5',
cursor: '#c0caf5',
selectionBackground: '#33467c',
black: '#15161e',
red: '#f7768e',
green: '#9ece6a',
yellow: '#e0af68',
blue: '#7aa2f7',
magenta: '#bb9af7',
cyan: '#7dcfff',
white: '#a9b1d6',
brightBlack: '#414868',
brightRed: '#f7768e',
brightGreen: '#9ece6a',
brightYellow: '#e0af68',
brightBlue: '#7aa2f7',
brightMagenta: '#bb9af7',
brightCyan: '#7dcfff',
brightWhite: '#c0caf5',
},
fontSize: 14,
fontFamily: "'Cascadia Code', 'Fira Code', 'JetBrains Mono', 'Menlo', monospace",
cursorBlink: true,
allowProposedApi: true,
});
const fitAddon = new FitAddon.FitAddon();
term.loadAddon(fitAddon);
const webLinksAddon = new WebLinksAddon.WebLinksAddon();
term.loadAddon(webLinksAddon);
// Create container div
const container = document.createElement('div');
container.className = 'terminal-container';
container.id = `term-${sessionId}`;
terminalArea.appendChild(container);
term.open(container);
fitAddon.fit();
// Send initial resize
send({
type: 'resize',
session_id: sessionId,
cols: term.cols,
rows: term.rows,
});
// Handle user input
term.onData(data => {
const bytes = new TextEncoder().encode(data);
const b64 = btoa(String.fromCharCode(...bytes));
send({
type: 'input',
session_id: sessionId,
data: b64,
});
});
// Store session
sessions[sessionId] = { term, fitAddon, projectName, type: sessionType, container };
// Add tab and switch to it
addTab(sessionId, projectName, sessionType);
switchToSession(sessionId);
emptyState.style.display = 'none';
}
function onSessionOutput(sessionId, b64data) {
const session = sessions[sessionId];
if (!session) return;
const bytes = Uint8Array.from(atob(b64data), c => c.charCodeAt(0));
session.term.write(bytes);
}
function onSessionExit(sessionId) {
const session = sessions[sessionId];
if (!session) return;
session.term.writeln('\r\n\x1b[90m[Session ended]\x1b[0m');
}
function closeSession(sessionId) {
send({ type: 'close', session_id: sessionId });
removeSession(sessionId);
}
function removeSession(sessionId) {
const session = sessions[sessionId];
if (!session) return;
session.term.dispose();
session.container.remove();
delete sessions[sessionId];
// Remove tab
const tab = document.getElementById(`tab-${sessionId}`);
if (tab) tab.remove();
// Switch to another session or show empty state
const remaining = Object.keys(sessions);
if (remaining.length > 0) {
switchToSession(remaining[remaining.length - 1]);
} else {
activeSessionId = null;
emptyState.style.display = '';
}
}
// ── Tab bar ────────────────────────────────
function addTab(sessionId, projectName, sessionType) {
const tab = document.createElement('div');
tab.className = 'tab';
tab.id = `tab-${sessionId}`;
const label = document.createElement('span');
label.textContent = `${projectName} (${sessionType})`;
tab.appendChild(label);
const close = document.createElement('button');
close.className = 'tab-close';
close.textContent = '\u00d7';
close.onclick = (e) => { e.stopPropagation(); closeSession(sessionId); };
tab.appendChild(close);
tab.onclick = () => switchToSession(sessionId);
tabbar.appendChild(tab);
}
function switchToSession(sessionId) {
activeSessionId = sessionId;
// Update tab styles
document.querySelectorAll('.tab').forEach(t => t.classList.remove('active'));
const tab = document.getElementById(`tab-${sessionId}`);
if (tab) tab.classList.add('active');
// Show/hide terminal containers
document.querySelectorAll('.terminal-container').forEach(c => c.classList.remove('active'));
const container = document.getElementById(`term-${sessionId}`);
if (container) {
container.classList.add('active');
const session = sessions[sessionId];
if (session) {
// Fit after making visible
requestAnimationFrame(() => {
session.fitAddon.fit();
session.term.focus();
});
}
}
}
// ── Resize handling ────────────────────────
function handleResize() {
if (activeSessionId && sessions[activeSessionId]) {
const session = sessions[activeSessionId];
session.fitAddon.fit();
send({
type: 'resize',
session_id: activeSessionId,
cols: session.term.cols,
rows: session.term.rows,
});
}
}
let resizeTimeout;
window.addEventListener('resize', () => {
clearTimeout(resizeTimeout);
resizeTimeout = setTimeout(handleResize, 100);
});
// ── Event listeners ────────────────────────
btnClaude.onclick = () => openSession('claude');
btnBash.onclick = () => openSession('bash');
// ── Init ───────────────────────────────────
connect();
})();
</script>
</body>
</html>