129 lines
4.0 KiB
JavaScript
129 lines
4.0 KiB
JavaScript
/*
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* Local server for the SDE meeting toolkit.
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* Serves the static tool files.
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* Proxies AI draft requests to the Anthropic API, so the API key
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* stays on the server and never appears in the browser.
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*/
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const http = require('http');
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const fs = require('fs');
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const path = require('path');
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const ROOT = __dirname;
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const PORT = process.env.PORT || 5173;
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const ANTHROPIC_VERSION = '2023-06-01';
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const MIME = {
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'.html': 'text/html; charset=utf-8',
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'.js': 'text/javascript; charset=utf-8',
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'.css': 'text/css; charset=utf-8',
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'.json': 'application/json; charset=utf-8',
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'.svg': 'image/svg+xml',
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'.png': 'image/png',
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'.skill': 'application/zip'
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};
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function loadEnvFile() {
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const envPath = path.join(ROOT, '.env');
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let content;
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try {
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content = fs.readFileSync(envPath, 'utf8');
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} catch (err) {
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return; // no .env file; that is allowed, the AI draft route will report it
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}
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content.split('\n').forEach((line) => {
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const trimmed = line.trim();
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if (!trimmed || trimmed.startsWith('#')) return;
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const idx = trimmed.indexOf('=');
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if (idx === -1) return;
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const key = trimmed.slice(0, idx).trim();
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const value = trimmed.slice(idx + 1).trim().replace(/^["']|["']$/g, '');
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if (key && !(key in process.env)) process.env[key] = value;
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});
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}
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loadEnvFile();
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function sendJson(res, status, obj) {
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const body = JSON.stringify(obj);
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res.writeHead(status, { 'Content-Type': 'application/json; charset=utf-8' });
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res.end(body);
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}
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function proxyToClaude(req, res) {
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if (!process.env.ANTHROPIC_API_KEY) {
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sendJson(res, 500, {
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error: 'ANTHROPIC_API_KEY is not set. Add it to the .env file in this folder, then restart the server.'
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});
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return;
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}
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let body = '';
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req.on('data', (chunk) => { body += chunk; });
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req.on('end', async () => {
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try {
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const upstream = await fetch('https://api.anthropic.com/v1/messages', {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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'x-api-key': process.env.ANTHROPIC_API_KEY,
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'anthropic-version': ANTHROPIC_VERSION
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},
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body
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});
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const text = await upstream.text();
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res.writeHead(upstream.status, { 'Content-Type': 'application/json; charset=utf-8' });
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res.end(text);
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} catch (err) {
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sendJson(res, 502, { error: 'Could not reach the Anthropic API: ' + err.message });
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}
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});
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}
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function serveStatic(req, res) {
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const urlPath = decodeURIComponent(req.url.split('?')[0]);
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if (urlPath === '/') {
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const index = `<!doctype html><html><body style="font:14px system-ui;padding:2rem">
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<h1>SDE Meeting Toolkit</h1>
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<ul>
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<li><a href="/tools/field-problem-workshop.html">Field Problem Workshop</a></li>
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<li><a href="/tools/scope-lock-meeting-suite.html">Scope Lock Meeting Suite</a></li>
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</ul>
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</body></html>`;
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res.writeHead(200, { 'Content-Type': 'text/html; charset=utf-8' });
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res.end(index);
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return;
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}
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const filePath = path.normalize(path.join(ROOT, urlPath));
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if (!filePath.startsWith(ROOT)) {
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res.writeHead(403);
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res.end('Forbidden');
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return;
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}
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fs.readFile(filePath, (err, data) => {
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if (err) {
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res.writeHead(404, { 'Content-Type': 'text/plain' });
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res.end('Not found: ' + urlPath);
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return;
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}
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const ext = path.extname(filePath);
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res.writeHead(200, { 'Content-Type': MIME[ext] || 'application/octet-stream' });
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res.end(data);
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});
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}
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const server = http.createServer((req, res) => {
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if (req.method === 'POST' && req.url === '/api/claude') {
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proxyToClaude(req, res);
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return;
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}
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if (req.method === 'GET') {
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serveStatic(req, res);
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return;
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}
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res.writeHead(405, { 'Content-Type': 'text/plain' });
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res.end('Method not allowed');
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});
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server.listen(PORT, () => {
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console.log(`SDE meeting toolkit running at http://localhost:${PORT}`);
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console.log(process.env.ANTHROPIC_API_KEY ? 'ANTHROPIC_API_KEY loaded: AI draft button is live.' : 'No ANTHROPIC_API_KEY found: AI draft button will return an error until you add one to .env.');
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});
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