cat-shark
69 lines
1.7 KiB
JavaScript
69 lines
1.7 KiB
JavaScript
const fs = require("node:fs");
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const path = require("node:path");
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function sendJson(res, statusCode, body) {
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res.writeHead(statusCode, {
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"Content-Type": "application/json; charset=utf-8",
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"Access-Control-Allow-Origin": "*",
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"Access-Control-Allow-Headers": "Content-Type, Authorization",
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"Access-Control-Allow-Methods": "GET, POST, PUT, DELETE, OPTIONS",
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"Cache-Control": "no-store",
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});
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res.end(JSON.stringify(body));
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}
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function sendText(res, statusCode, text, contentType = "text/plain; charset=utf-8") {
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res.writeHead(statusCode, {
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"Content-Type": contentType,
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"Access-Control-Allow-Origin": "*",
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"Cache-Control": "no-store",
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});
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res.end(text);
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}
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function redirect(res, location) {
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res.writeHead(302, { Location: location });
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res.end();
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}
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async function readBody(req) {
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const chunks = [];
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for await (const chunk of req) chunks.push(chunk);
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const text = Buffer.concat(chunks).toString("utf8");
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if (!text) return {};
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try {
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return JSON.parse(text);
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} catch {
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return {};
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}
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}
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function serveFile(res, filePath, contentType = "text/html; charset=utf-8") {
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if (!fs.existsSync(filePath)) {
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sendText(res, 404, "Not found");
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return;
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}
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res.writeHead(200, {
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"Content-Type": contentType,
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"Cache-Control": "no-store",
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});
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fs.createReadStream(filePath).pipe(res);
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}
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function safeJoin(baseDir, requestPath) {
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const resolved = path.resolve(baseDir, requestPath.replace(/^\/+/, ""));
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if (!resolved.startsWith(path.resolve(baseDir))) return null;
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return resolved;
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}
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module.exports = {
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sendJson,
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sendText,
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redirect,
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readBody,
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serveFile,
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safeJoin,
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};
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