149 lines
5.8 KiB
JavaScript
149 lines
5.8 KiB
JavaScript
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#!/usr/bin/env node
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/**
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* Lethean Chain Status Bot
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*
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* Lightweight HTTP API that returns chain status in formats suitable for
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* embedding in Telegram/Discord bots, status pages, or shell scripts.
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*
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* Endpoints:
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* GET / — human-readable status
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* GET /json — full JSON status
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* GET /height — just the height (plain text)
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* GET /badge — shields.io compatible badge JSON
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* GET /check/:h — check if a given height has been reached
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*
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* Usage:
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* node bot.js
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* curl http://localhost:8101/height → "10969"
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* curl http://localhost:8101/json → {"height":10969,"hf":[0,1,2,3],...}
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* curl http://localhost:8101/check/11000 → {"reached":false,"current":10969,"remaining":31}
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* curl http://localhost:8101/badge → shields.io badge JSON
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*/
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const http = require('http');
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const PORT = process.env.PORT || 8101;
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const DAEMON = process.env.DAEMON_URL || 'http://127.0.0.1:46941';
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async function getChainInfo() {
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try {
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const resp = await fetch(`${DAEMON}/json_rpc`, {
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method: 'POST',
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headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify({ jsonrpc: '2.0', id: '0', method: 'getinfo' }),
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});
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const data = await resp.json();
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const r = data.result;
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return {
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height: r.height,
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hf: r.is_hardfok_active.map((v, i) => v ? i : null).filter(v => v !== null),
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difficulty: r.pow_difficulty,
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aliases: r.alias_count,
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txPool: r.tx_pool_size,
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posAllowed: r.pos_allowed,
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synced: r.daemon_network_state === 2,
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};
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} catch {
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return null;
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}
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}
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const server = http.createServer(async (req, res) => {
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const url = new URL(req.url, `http://localhost:${PORT}`);
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res.setHeader('Access-Control-Allow-Origin', '*');
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const info = await getChainInfo();
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if (!info) {
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res.writeHead(503, { 'Content-Type': 'application/json' });
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return res.end('{"error":"daemon unreachable"}');
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}
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// Plain height
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if (url.pathname === '/height') {
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res.writeHead(200, { 'Content-Type': 'text/plain' });
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return res.end(String(info.height));
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}
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// Full JSON
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if (url.pathname === '/json') {
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res.writeHead(200, { 'Content-Type': 'application/json' });
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return res.end(JSON.stringify(info));
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}
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// Height check
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const checkMatch = url.pathname.match(/^\/check\/(\d+)$/);
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if (checkMatch) {
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const target = parseInt(checkMatch[1]);
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res.writeHead(200, { 'Content-Type': 'application/json' });
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return res.end(JSON.stringify({
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reached: info.height >= target,
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current: info.height,
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target,
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remaining: Math.max(0, target - info.height),
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eta: info.height < target ? `~${(target - info.height) * 2} min` : 'now',
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}));
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}
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// Shields.io badge
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if (url.pathname === '/badge') {
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const color = info.height >= 11000 ? 'brightgreen' : info.height >= 10500 ? 'yellow' : 'blue';
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res.writeHead(200, { 'Content-Type': 'application/json' });
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return res.end(JSON.stringify({
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schemaVersion: 1,
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label: 'Lethean Testnet',
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message: `height ${info.height} | HF${info.hf[info.hf.length - 1]}`,
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color,
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}));
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}
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// HTML dashboard
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if (url.pathname === '/dashboard') {
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const hf5eta = info.height >= 11500 ? 'ACTIVE' : `${11500 - info.height} blocks (~${Math.round((11500 - info.height) * 2 / 60)}h)`;
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res.writeHead(200, { 'Content-Type': 'text/html' });
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return res.end(`<!DOCTYPE html><html><head><title>Lethean Status</title>
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<meta http-equiv="refresh" content="30">
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<style>body{background:#111;color:#eee;font-family:monospace;padding:20px;max-width:800px;margin:0 auto}
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h1{color:#00d4aa}table{width:100%;border-collapse:collapse}td,th{padding:8px;text-align:left;border-bottom:1px solid #333}
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th{color:#00d4aa}.ok{color:#0f0}.warn{color:#ff0}.err{color:#f00}a{color:#00d4aa}</style></head>
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<body><h1>Lethean Network Status</h1>
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<table>
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<tr><th>Chain</th><td>Height <b>${info.height}</b> | HF${info.hf[info.hf.length-1]} | ${info.aliases} aliases | Pool: ${info.txPool} tx</td></tr>
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<tr><th>HF5 (ITNS)</th><td>${hf5eta}</td></tr>
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<tr><th>Synced</th><td class="${info.synced?'ok':'err'}">${info.synced?'YES':'NO'}</td></tr>
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</table>
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<h2>Services</h2>
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<table><tr><th>Service</th><th>URL</th></tr>
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<tr><td>Explorer</td><td><a href="https://explorer.lthn.io">explorer.lthn.io</a></td></tr>
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<tr><td>Trade DEX</td><td><a href="https://trade.lthn.io">trade.lthn.io</a></td></tr>
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<tr><td>Docs</td><td><a href="https://testnet-docs.lthn.io">testnet-docs.lthn.io</a></td></tr>
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<tr><td>Downloads</td><td><a href="https://downloads.lthn.io">downloads.lthn.io</a></td></tr>
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<tr><td>VPN Config</td><td><a href="https://vpn.lthn.io">vpn.lthn.io</a></td></tr>
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<tr><td>SWAP</td><td><a href="https://swap.lthn.io">swap.lthn.io</a></td></tr>
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<tr><td>LNS DNS</td><td><code>dig @10.69.69.165 charon.lthn A</code></td></tr>
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<tr><td>LNS API</td><td><a href="https://lns.lthn.io/health">lns.lthn.io/health</a></td></tr>
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</table>
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<h2>Quick Start</h2>
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<pre>curl -sL https://downloads.lthn.io/setup.sh | bash</pre>
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<p style="color:#666;margin-top:30px">Auto-refreshes every 30s | <a href="/json">JSON API</a> | <a href="/badge">Badge</a></p>
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</body></html>`);
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}
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// Human-readable
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res.writeHead(200, { 'Content-Type': 'text/plain' });
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res.end([
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`Lethean Testnet Status`,
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` Height: ${info.height}`,
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` HF Active: ${info.hf.join(', ')}`,
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` Difficulty: ${info.difficulty}`,
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` Aliases: ${info.aliases}`,
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` TX Pool: ${info.txPool}`,
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` PoS: ${info.posAllowed ? 'enabled' : 'disabled'}`,
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` Synced: ${info.synced}`,
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``,
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` HF4 (11000): ${info.height >= 11000 ? 'ACTIVE' : `in ${11000 - info.height} blocks (~${(11000 - info.height) * 2} min)`}`,
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` HF5 (11500): ${info.height >= 11500 ? 'ACTIVE' : `in ${11500 - info.height} blocks`}`,
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].join('\n'));
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});
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server.listen(PORT, () => console.log(`Chain status bot on :${PORT}`));
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