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package server;
import js.node.Buffer;
import haxe.io.Path;
import js.node.Fs;
import sys.io.File;
import js.node.http.IncomingMessage;
import js.node.http.ServerResponse;
import js.Node.__dirname;
import js.node.Path as JsPath;
using StringTools;
class HttpServer {
static final mimeTypes = [
"html" => "text/html",
"js" => "text/javascript",
"css" => "text/css",
"json" => "application/json",
"png" => "image/png",
"jpg" => "image/jpg",
"gif" => "image/gif",
"svg" => "image/svg+xml",
"ico" => "image/x-icon",
"wav" => "audio/wav",
"mp3" => "audio/mpeg",
"mp4" => "video/mp4",
"woff" => "application/font-woff",
"ttf" => "application/font-ttf",
"eot" => "application/vnd.ms-fontobject",
"otf" => "application/font-otf",
"wasm" => "application/wasm"
];
static var dir:String;
public static function init(directory:String):Void {
dir = directory;
}
public static function serveFiles(req:IncomingMessage, res:ServerResponse):Void {
var filePath = dir + req.url;
if (req.url == "/") filePath = '$dir/index.html';
final extension = Path.extension(filePath).toLowerCase();
final contentType = getMimeType(extension);
if (!isChildOf(dir, filePath)) {
res.statusCode = 500;
var rel = JsPath.relative(dir, filePath);
res.end('Error getting the file: No access to $rel.');
return;
}
// load client code from build folder
if (filePath == '$dir/client.js') {
filePath = '$__dirname/client.js';
}
Fs.readFile(filePath, function(err:Dynamic, data:Buffer) {
if (err != null) {
if (err.code == "ENOENT") {
res.statusCode = 404;
var rel = JsPath.relative(dir, filePath);
res.end('File $rel not found.');
} else {
res.statusCode = 500;
res.end('Error getting the file: $err.');
}
return;
}
res.setHeader("Content-Type", contentType);
if (extension == "html") {
// replace ${textId} to localized strings
data = cast localizeHtml(data.toString(), req.headers["accept-language"]);
}
res.end(data);
});
}
static final matchLang = ~/^[A-z]+/;
static function localizeHtml(data:String, lang:String):String {
if (lang != null && matchLang.match(lang)) {
lang = matchLang.matched(0);
} else lang = "en";
data = ~/\${([A-z_]+)}/g.map(data, (regExp) -> {
final key = regExp.matched(1);
return Lang.get(lang, key);
});
return data;
}
static function isChildOf(parent:String, child:String):Bool {
final path = JsPath;
final relative = path.relative(parent, child);
return relative.length > 0 && !relative.startsWith('..') && !path.isAbsolute(relative);
}
static function getMimeType(ext:String):String {
var contentType = mimeTypes[ext];
if (contentType == null) contentType = "application/octet-stream";
return contentType;
}
}
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