67 lines
2.6 KiB
JavaScript
67 lines
2.6 KiB
JavaScript
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 PORT = process.env.PORT || 3000;
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const DATA = path.join(__dirname, "data.json");
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function readData() {
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try { return JSON.parse(fs.readFileSync(DATA, "utf8")); } catch (_) { return { registrations: [] }; }
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}
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function writeData(d) {
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fs.writeFileSync(DATA, JSON.stringify(d, null, 2));
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}
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function body(req) {
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return new Promise((resolve) => {
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let s = "";
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req.on("data", (c) => (s += c));
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req.on("end", () => { try { resolve(JSON.parse(s || "{}")); } catch (_) { resolve({}); } });
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});
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}
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function clean(v, max) {
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return String(v == null ? "" : v).replace(/[<>]/g, "").trim().slice(0, max);
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}
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http.createServer(async (req, res) => {
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const url = req.url.split("?")[0];
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// API: список регистраций
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if (req.method === "GET" && url === "/api/registrations") {
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res.writeHead(200, { "Content-Type": "application/json" });
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return res.end(JSON.stringify(readData().registrations));
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}
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// API: регистрация
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if (req.method === "POST" && url === "/api/registrations") {
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const b = await body(req);
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const name = clean(b.name, 120);
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const dept = clean(b.dept, 120);
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const email = clean(b.email, 120);
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const phone = clean(b.phone, 40);
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if (!name || !dept || !email || !phone) {
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res.writeHead(400, { "Content-Type": "application/json" });
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return res.end(JSON.stringify({ ok: false, error: "Заполните все поля" }));
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}
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const rec = { name, dept, email, phone, createdAt: new Date().toISOString() };
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const d = readData();
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if (d.registrations.some((r) => r.email && r.email.toLowerCase() === email.toLowerCase())) {
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res.writeHead(409, { "Content-Type": "application/json" });
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return res.end(JSON.stringify({ ok: false, error: "С таким e-mail вы уже зарегистрированы" }));
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}
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d.registrations.push({ id: Date.now(), ...rec });
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writeData(d);
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res.writeHead(200, { "Content-Type": "application/json" });
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return res.end(JSON.stringify({ ok: true }));
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}
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// Статика
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let file = url === "/" ? "/index.html" : url;
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const full = path.join(__dirname, file);
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if (full.startsWith(__dirname) && fs.existsSync(full) && fs.statSync(full).isFile()) {
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const ext = path.extname(full);
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const type = ext === ".css" ? "text/css" : ext === ".js" ? "application/javascript" : "text/html";
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res.writeHead(200, { "Content-Type": type + "; charset=utf-8" });
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return res.end(fs.readFileSync(full));
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}
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res.writeHead(404); res.end("Not found");
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}).listen(PORT, () => console.log("Сервер на порту " + PORT));
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