How do I enable https with httplistener?

Question

I am trying to create a simple https server in c# in a Unity3D game, to be accessed through a web browser. I've created a server cert and key with openssl, but I can't find a multi-platform way to pass the cert to the server without any additional configuration outside the code.

Most of the info I've been able to find falls into these categories:

Uses SslStream, but that seems to only be relevant for TcpListener (and I want something higher level that can serve webpages)
Requires external Windows-only tools like httpcfg that I'd prefer not to use
Programmatically or manually installing certs in certificate stores, which seems to require either the program or the user to have admin/root privileges

I know in python you do something like:

ssl.wrap_socket (httpd.socket, certfile='./server-crt.pem', keyfile='./server-key.pem', server_side=True)

...but there doesn't seem to be an equivalent in c# for httplistener, or in system.security.securitymanager or anything. I assume/hope that I'm just missing something obvious here.

For what it's worth, here's what I have so far, which is just the MSDN httplistener example put in a Unity script:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System;
using System.Net;

public class SimpleListenerExample : MonoBehaviour {

    // This example requires the System and System.Net namespaces.
    public static void StartServer(string[] prefixes)
    {
        if (!HttpListener.IsSupported)
        {
            Console.WriteLine("Windows XP SP2 or Server 2003 is required to use the HttpListener class.");
            return;
        }
        // URI prefixes are required,
        // for example "http://contoso.com:8080/index/".
        if (prefixes == null || prefixes.Length == 0)
            throw new ArgumentException("prefixes");

        // Create a listener.
        HttpListener listener = new HttpListener();
        // Add the prefixes.
        foreach (string s in prefixes)
        {
            listener.Prefixes.Add(s);
        }

        /* and here's the part where I would load the server certificate ...somehow */

        listener.Start();
        Console.WriteLine("Listening...");
        // Note: The GetContext method blocks while waiting for a request. 
        HttpListenerContext context = listener.GetContext();
        HttpListenerRequest request = context.Request;
        // Obtain a response object.
        HttpListenerResponse response = context.Response;
        // Construct a response.
        string responseString = "<HTML><BODY> Hello world!</BODY></HTML>";
        byte[] buffer = System.Text.Encoding.UTF8.GetBytes(responseString);
        // Get a response stream and write the response to it.
        response.ContentLength64 = buffer.Length;
        System.IO.Stream output = response.OutputStream;
        output.Write(buffer, 0, buffer.Length);
        // You must close the output stream.
        output.Close();
        listener.Stop();
    }

    // Use this for initialization
    void Start () {
        String[] prefixes = { "http://*:8089/", "https://*:8443/" };
        StartServer(prefixes);
    }

    // Update is called once per frame
    void Update () {

    }
}

Answer 1

If you came here from Google trying to find information on HttpListener in Mono and SSL, you will find more pertinent information on this related question:

Mono HttpListener client certificate

The OPs originally desire is a simple web server without any platform-specific configuration. So far, the only library I've found that supports an approach that avoids platform configuration is Ceen HTTPd.

There was a discussion about Ceen from a poster with a similar need here: https://softwarerecs.stackexchange.com/questions/52304/net-library-for-running-an-embedded-selfhosted-light-web-server-from-c-with-ss

How do I enable https with httplistener?

Question

1 answers

solution1
0 2019-08-10 17:16:06

How do I enable https with httplistener?

Question

1 answers

solution1 0 2019-08-10 17:16:06

solution1
0 2019-08-10 17:16:06