webframe/js/static.js

var fs = require("fs");
var pathlib = require("path");

function mimetype(path) {
}

module.exports = function(root, before) {

	return function(req, res, app) {
		var pn = req.urlobj.pathname;

		// Send a file
		function send(path) {
			var rs = fs.createReadStream(path);
			rs.on("error", err => {
				app.notice(err);
				res.end(template(app.res404, { pathname: pathname }));
			});
			rs.on("data", d => res.write(d));
			rs.on("end", () => res.end());
		}

		res.responded = true;

		// Prevent leaking information
		if (pn.indexOf("../") !== -1 || pn.indexOf("/..") !== -1 || pn === "..") {
			res.writeHead(403);
			res.end(template(app.res403, { pathname: pn }));
			return;
		}

		// Join the web root with the request's path name
		var path = pathlib.join(root, pn.replace(before, ""));

		fs.stat(path, (err, stat) => {

			// If there's an error stat'ing, just error
			if (err) {
				app.notice(err);
				res.writeHead(404);
				res.end(template(app.res404, { pathname: pn }));
				return;
			}

			// If it's a directory, we want the index.html file
			if (stat.isDirectory())
				path = pathlib.join(path, "index.html");

			// Send the file
			send(path, pn, res, app);
		});
	}
}