Function serverStatic

backend/src/server/server.js:118–158

(endpoint, dir)

    const all = (a, b) => { add('ALL', a, b); };
    const getRoutes = () => ROUTES.reduce((acc, { method, path }) => ((acc[method] = acc[method] || []).push(path), acc), {});
    const serverStatic = (endpoint, dir) => {
        const a = path.resolve(dir);
        if (!fs.existsSync(a) || !fs.statSync(a).isDirectory()) {
            console.error(`[STATIC] Directory not found or is not a directory: ${a}`);
            return (req, res, next) => next();
        }
        let b = (endpoint.endsWith('/') ? endpoint : endpoint + '/');
        return function staticMiddleware(req, res, next) {
            if (req.method !== 'GET' && req.method !== 'HEAD')
                return next();
            if (!req.path.startsWith(b))
                return next();
            let c = path.join(a, req.path.substring(b.length));
            let d = path.relative(a, c);
            if (!(d && !d.startsWith('..') && !path.isAbsolute(d)))
                return next();
            fs.stat(c, (err, stats) => {
                if (err || !stats.isFile())
                    return next();
                res.setHeader('Content-Type', getContentType(c));
                fs.createReadStream(c).pipe(res);
            });
        };
        function getContentType(a) {
            switch (path.extname(a).toLowerCase()) {
                case '.html': return 'text/html';
                case '.js': return 'text/javascript';
                case '.css': return 'text/css';
                case '.json': return 'application/json';
                case '.txt': return 'text/plain';
                case '.ico': return 'image/x-icon';
                case '.png': return 'image/png';
                case '.webp': return 'image/webp';
                case '.jpg': return 'image/jpeg';
                case '.jpeg': return 'image/jpeg';
                case '.gif': return 'image/gif';
                case '.svg': return 'image/svg+xml';
                default: return 'application/octet-stream';
            }
        }
    };
    use((req, res, next) => {
        if (req.headers['content-type']?.includes('application/json')) {
            let d = '';