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"use strict"
const Path = require("path");
const url = require("url");
const fs = require("fs");
const mimeTypes = {
".html": "text/html",
".css": "text/css",
".js": "text/javascript",
".json": "application/json",
".wasm": "application/wasm",
".pdf": "application/pdf",
".txt": "text/plain",
".md": "text/markdown",
".png": "image/png",
".jpg": "image/jpg",
".svg": "image/svg+xml",
".gif": "image/gif",
".ico": "image/x-icon",
".wav": "audio/wav",
".mp3": "audio/mpeg",
".mp4": "video/mp4",
".eot": "application/vnd.ms-fontobject",
".ttf": "application/font-ttf",
".woff": "application/font-woff",
};
module.exports = class Static {
constructor(root) {
this.root = `${root||"."}`;
this.e404 = fs.readFileSync(`${this.root}/404.html`);
this.e500 = fs.readFileSync(`${this.root}/500.html`);
}
route(req, res) {
if (req.method !== "GET") {
res.writeHead(405, {"Content-Type": "text/plain"});
res.end("405 Method Not Allowed");
return;
}
const pathname = url.parse(req.url).pathname;
const sane = Path.normalize(pathname).replace(/^(\.\.\/)+/, "");
let path = `${this.root}${sane}`; //Path.join(__dirname, sane);
fs.stat(path, (err, stats) => {
if (err) { if (["EACCES", "ENOENT", "EPERM"].includes(err.code)) {
res.writeHead(404, {"Content-Type": "text/html"});
return res.end(this.e404);
} else { console.log(err);
res.writeHead(500, {"Content-Type": "text/html"});
return res.end(this.e500);
}}
if (stats.isDirectory()) path += "/index.html";
const ext = `${Path.extname(path)}`.toLowerCase();
const stream = fs.createReadStream(path);
stream.on("error", e => { console.log(e);
res.writeHead(500, {"Content-Type": "text/html"});
//res.end(`<pre>Error getting the file: ${e}</pre>`);
res.end(this.e500);
});
res.setHeader("Content-Type", mimeTypes[ext]||"application/octet-stream");
// TODO Caching?
stream.pipe(res);
});
}
};
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