files

index.js

 		this.clientScript += start + str + end;
 	}
 
+	/*
+	 * Template string
+	 */
+	template(tmpl, args) { return template(tmpl, args); }
+
 	get(path, before, func) { this.route("GET", path, before, func); }
 	post(path, before, func) { this.route("POST", path, before, func); }
 	put(path, before, func) { this.route("PUT", path, before, func); }

js/static.js

 var fs = require("fs");
 var pathlib = require("path");
 
+var mimes = {
+	txt: "text/plain",
+	css: "text/css",
+	html: "text/html",
+
+	js: "application/javascript",
+	json: "application/json",
+	xml: "application/xml",
+	zip: "application/zip",
+	pdf: "application/pdf",
+
+	png: "image/png",
+	jpeg: "image/jpeg",
+	jpg: "image/jpeg",
+	gif: "image/gif",
+	svg: "image/svg",
+}
+
 function mimetype(path) {
+	var unknown = "application/octet-stream";
+
+	var ext = pathlib.extname(path);
+	if (ext)
+		return mimes[ext.substr(1)] || unknown;
+	else
+		return unknown;
+}
+
+function sendfile(path, app, pathname, res) {
+	fs.open(path, "r", (err, fd) => {
+		if (err) {
+			app.notice(err);
+			res.writeHead(404);
+			res.end(app.template(app.res404, { pathname: pathname }));
+			return;
+		}
+
+		res.writeHead(200, {
+			"Content-Type": mimetype(path)
+		});
+
+		var rs = fs.createReadStream(null, { fd: fd });
+		rs.on("error", err => {
+			app.warning(err);
+		});
+		rs.on("data", d => res.write(d));
+		rs.on("end", () => res.end());
+	});
 }
 
 module.exports = function(root, before) {
 
 		// 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());
+			sendfile(path, app, pn, res);
 		}
 
-		res.responded = true;
-
 		// Prevent leaking information
 		if (pn.indexOf("../") !== -1 || pn.indexOf("/..") !== -1 || pn === "..") {
 			res.writeHead(403);
-			res.end(template(app.res403, { pathname: pn }));
+			res.end(app.template(app.res403, { pathname: pn }));
 			return;
 		}
 
 			if (err) {
 				app.notice(err);
 				res.writeHead(404);
-				res.end(template(app.res404, { pathname: pn }));
+				res.end(app.template(app.res404, { pathname: pn }));
 				return;
 			}
 
 				path = pathlib.join(path, "index.html");
 
 			// Send the file
-			send(path, pn, res, app);
+			send(path);
 		});
 	}
 }