cyph3rasi
8935bdf5c5
Hop-State: A_06FP9KPYV5CQ0X9F467H58G Hop-Proposal: R_06FP9KNN01X6RVC106905HG Hop-Task: T_06FP9KBX6WGXFK0K5XYQSR0 Hop-Attempt: AT_06FP9KBX6Y81G7RGHF7RCK8
167 lines
7.0 KiB
JavaScript
167 lines
7.0 KiB
JavaScript
import http from 'node:http';
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import { dirname, join } from 'node:path';
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import { existsSync, readFileSync } from 'node:fs';
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import { mkdir, rename, rm, writeFile } from 'node:fs/promises';
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const host = process.env.MAINTENANCE_HOST || '127.0.0.1';
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const port = Number.parseInt(process.env.PORT || '43821', 10);
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const dataDir = process.env.MAINTENANCE_DATA_DIR
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|| dirname(process.env.DATABASE_PATH || '/var/lib/synapsis/synapsis.db');
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const appDir = process.env.MAINTENANCE_APP_DIR || process.cwd();
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const brandingPath = join(dataDir, 'maintenance-branding.json');
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const logoPath = join(dataDir, 'maintenance-logo');
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const defaultLogoPath = join(appDir, 'public', 'logotext.svg');
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function validAccent(value) {
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return typeof value === 'string' && /^#[0-9a-f]{3}([0-9a-f]{3})?$/i.test(value)
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? value
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: '#9fdf5f';
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}
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async function captureBranding() {
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const baseUrl = `http://127.0.0.1:${port}`;
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await mkdir(dataDir, { recursive: true });
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const nodeResponse = await fetch(`${baseUrl}/api/node`, { cache: 'no-store' });
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if (!nodeResponse.ok) throw new Error(`Node branding returned HTTP ${nodeResponse.status}`);
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const node = await nodeResponse.json();
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const branding = {
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accentColor: validAccent(node.accentColor),
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externalLogoUrl: typeof node.logoUrl === 'string' && /^https?:\/\//i.test(node.logoUrl)
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? node.logoUrl
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: null,
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logoContentType: null,
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};
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const logoResponse = await fetch(`${baseUrl}/api/node/logo`, { cache: 'no-store' });
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if (logoResponse.ok) {
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const contentType = logoResponse.headers.get('content-type')?.split(';')[0];
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if (contentType?.startsWith('image/')) {
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const logoTempPath = `${logoPath}.tmp`;
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await writeFile(logoTempPath, Buffer.from(await logoResponse.arrayBuffer()));
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await rename(logoTempPath, logoPath);
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branding.logoContentType = contentType;
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} else {
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await rm(logoPath, { force: true });
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}
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} else {
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await rm(logoPath, { force: true });
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}
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const brandingTempPath = `${brandingPath}.tmp`;
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await writeFile(brandingTempPath, `${JSON.stringify(branding)}\n`, { mode: 0o640 });
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await rename(brandingTempPath, brandingPath);
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}
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if (process.argv.includes('--capture-branding')) {
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await captureBranding();
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process.exit(0);
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}
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let branding = {};
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try {
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branding = JSON.parse(readFileSync(brandingPath, 'utf8'));
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} catch {}
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const accentColor = validAccent(branding.accentColor);
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const logoContentType = typeof branding.logoContentType === 'string' && branding.logoContentType.startsWith('image/')
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? branding.logoContentType
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: 'application/octet-stream';
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const externalLogoUrl = typeof branding.externalLogoUrl === 'string' && /^https?:\/\//i.test(branding.externalLogoUrl)
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? branding.externalLogoUrl
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: null;
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const hasStoredLogo = existsSync(logoPath);
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const hasDefaultLogo = existsSync(defaultLogoPath);
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const logoMarkup = hasStoredLogo || externalLogoUrl || hasDefaultLogo
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? '<img class="logo" src="/maintenance-logo" alt="Node logo">'
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: '<div class="brand-fallback">Synapsis</div>';
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const page = `<!doctype html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<meta name="theme-color" content="#090909">
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<title>Update in progress</title>
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<style>
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:root { --accent: ${accentColor}; color-scheme: dark; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
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* { box-sizing: border-box; }
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body { margin: 0; min-height: 100vh; display: grid; place-items: center; overflow: hidden; background: #090909; color: #f5f5f5; }
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body::before { content: ""; position: fixed; width: 34rem; height: 34rem; border-radius: 50%; background: color-mix(in srgb, var(--accent) 13%, transparent); filter: blur(110px); transform: translate(-38vw, -30vh); }
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main { width: min(90vw, 34rem); padding: 3rem; text-align: center; border: 1px solid #292929; border-radius: 1.75rem; background: rgba(18, 18, 18, .92); box-shadow: 0 2rem 7rem rgba(0, 0, 0, .5); }
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.logo { display: block; width: auto; max-width: min(18rem, 75%); height: auto; max-height: 6rem; margin: 0 auto 2rem; object-fit: contain; filter: drop-shadow(0 0 1.75rem color-mix(in srgb, var(--accent) 35%, transparent)); }
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.brand-fallback { margin: 0 auto 2rem; color: var(--accent); font-size: 1.5rem; font-weight: 800; letter-spacing: -.04em; }
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h1 { margin: 0; font-size: clamp(1.75rem, 6vw, 2.5rem); letter-spacing: -.045em; }
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p { margin: 1rem auto 0; max-width: 25rem; color: #a6a6a6; font-size: 1.05rem; line-height: 1.6; }
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.status { margin-top: 2rem; display: inline-flex; align-items: center; gap: .65rem; color: #d7d7d7; font-size: .9rem; }
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.dot { width: .6rem; height: .6rem; border-radius: 50%; background: var(--accent); animation: pulse 1.4s ease-in-out infinite; }
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@keyframes pulse { 50% { opacity: .3; transform: scale(.75); } }
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@media (max-width: 520px) { main { padding: 2.25rem 1.5rem; } }
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</style>
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</head>
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<body>
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<main>
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${logoMarkup}
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<h1>Update in progress</h1>
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<p>We’re making Synapsis better. We’ll be right back!</p>
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<div class="status"><span class="dot"></span>Checking for the node…</div>
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</main>
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<script>
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setInterval(async () => {
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try {
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const response = await fetch('/api/health', { cache: 'no-store' });
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if (response.ok) location.reload();
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} catch {}
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}, 5000);
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</script>
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</body>
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</html>`;
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const server = http.createServer((request, response) => {
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if (request.url?.split('?')[0] === '/maintenance-logo') {
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if (hasStoredLogo) {
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const logo = readFileSync(logoPath);
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response.writeHead(200, {
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'Content-Type': logoContentType,
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'Content-Length': logo.byteLength,
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'Cache-Control': 'no-store, max-age=0',
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});
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response.end(logo);
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return;
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}
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if (externalLogoUrl) {
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response.writeHead(302, { Location: externalLogoUrl, 'Cache-Control': 'no-store, max-age=0' });
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response.end();
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return;
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}
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if (hasDefaultLogo) {
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const logo = readFileSync(defaultLogoPath);
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response.writeHead(200, {
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'Content-Type': 'image/svg+xml',
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'Content-Length': logo.byteLength,
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'Cache-Control': 'no-store, max-age=0',
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});
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response.end(logo);
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return;
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}
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}
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response.writeHead(503, {
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'Content-Type': 'text/html; charset=utf-8',
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'Content-Length': Buffer.byteLength(page),
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'Cache-Control': 'no-store, max-age=0',
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'Retry-After': '30',
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'X-Robots-Tag': 'noindex',
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});
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if (request.method === 'HEAD') response.end();
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else response.end(page);
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});
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server.listen(port, host, () => {
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console.log(`Synapsis maintenance page listening on http://${host}:${port}`);
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});
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const shutdown = () => server.close(() => process.exit(0));
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process.on('SIGINT', shutdown);
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process.on('SIGTERM', shutdown);
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