std/http: add serveTLS and listenAndServeTLS

[kevinkassimo]

Created serveTLS using listenTLS for HTTPS instead of listen for HTTP.

Example:

import { serve, serveTLS } from "./std/http/server.ts";

const tlsOptions = {
  hostname: "localhost",
  port: 443,
  certFile: "./localhost.pem",
  keyFile: "./localhost-key.pem",
};

async function httpServer() {
  console.log(`Simple HTTP server listening on localhost:80`);
  for await (const req of serve("localhost:80")) {
    const headers = new Headers();
    headers.set("Location", "https://localhost");
    req.respond({ status: 307, headers });
  }
}

async function httpsServer() {
  console.log(`Simple HTTPS server listening on ${tlsOptions.hostname}:${tlsOptions.port}`);
  const body = new TextEncoder().encode("Hello HTTPS");
  for await (const req of serveTLS(tlsOptions)) {
    req.respond({ body });
  }
}

httpServer();
httpsServer();

There seems to be still some issue when plain HTTP payload is submitted to the serveTLS that yields InvalidData error. We need to investigate how to gracefully handle the error in potentially another PR.

[ry]

Is this necessary given you wait for "server listening" on stdout above?

[kevinkassimo]

Without this delay we get Connection refused error on client side.

[ry]

Nice test.

[ry]

Can you add a jsdoc with a little example?

We have a documentation viewer now - so it will be visible at https://deno.land/std/http/server.ts?doc

[kevinkassimo]

Added.

[ry]

Can you try printing this after serveTLS is called? That might allow removing the delay

[ry]

LGTM