http.ts
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http.ts
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	import { Context, default as Koa } from "koa";
	import Static from "koa-static";
	import Router from "@koa/router";
	import { Server } from "http";
	import mount from "koa-mount";
	import installQS from "koa-qs";
	import handleError from "./handle-error";
	import { App } from "../main";

	export default class HttpServer {
	name: "www-serer";
	private server: Server;

	koa: Koa;
	router: Router;
	config: {
	port: number;
	"session-cookie-name": string;
	"max-payload-bytes": number;
	"api-base": string;
	};

	constructor(public app: App) {
	this.koa = new Koa();
	installQS(this.koa);

	this.koa.context.$app = this.app;

	this.router = new Router();

	// const rest_url_base = this.config["api-base"];
	}

	async start() {
	this.koa.use(handleError());
	this.koa.use(this.router.routes());
	this.config = this.app.ConfigManager.get("www-server");
	this.server = this.koa.listen(this.config.port);

	this.app.Logger.info(
	"STARTED",
	`App running. URL set in manifest: ${this.app.manifest.base_url}`
	);
	}

	async stop() {
	this.server.close();
	}

	addStaticRoute(url_path: string, local_path: string) {
	this.koa.use(
	mount(
	url_path,
	Static(local_path, {
	maxage: 1000 * 60 * 60 * 24 * 15,
	defer: true,
	})
	)
	);

	this.koa.use(
	mount(url_path, async function (ctx: Context, next) {
	ctx.set("ETag", `W/"${ctx.URL.toString()}"`);
	ctx.set("cache-control", "public, max-age=2592000");

	if (
	ctx.response.header.etag &&
	ctx.request.headers["if-none-match"] ==
	ctx.response.header.etag
	) {
	ctx.status = 304;
	return;
	}

	await next();
	})
	);
	}
	}