ln.http/ln.http.helpers/HttpMailer.cs

using System;
using System.IO;
using ln.http.route;
using MimeKit;

namespace ln.http.helpers
{

    public class HttpMailer : HttpRoute, IDisposable
    {
        private HttpRouter _httpRouter;
        private HttpCaptcha _httpCaptcha;
        private HttpMailerOptions _httpMailerOptions;
        private HttpMailerEndpoints _httpMailerEndpoints;
        
        public HttpMailer(HttpRouter httpRouter, string mapPath, HttpMailerOptions mailerOptions)
            : this(httpRouter, mapPath, mailerOptions, null)
        {
        }

        public HttpMailer(HttpRouter httpRouter, string mapPath, HttpMailerOptions mailerOptions,
            HttpCaptcha httpCaptcha)
            : base(HttpMethod.ANY, mapPath)
        {
            _httpRouter = httpRouter;
            _httpCaptcha = httpCaptcha;
            _httpMailerOptions = mailerOptions;
            _httpMailerEndpoints = new HttpMailerEndpoints(this);
            _routerDelegate = _httpMailerEndpoints.RouteRequest;
            
            httpRouter.Map(this);
        }

        public class HttpMailerOptions
        {
            public string Hostname { get; set; } = "localhost";
            public int Port { get; set; } = 25;

            public string? Username { get; set; }
            public string? Password { get; set; }

            public SmtpEncryption Encryption { get; set; } = SmtpEncryption.None;
        }

        class HttpMailerEndpoints : HttpEndpointController
        {
            private HttpMailer _httpMailer;
            
            public HttpMailerEndpoints(HttpMailer httpMailer)
            {
                _httpMailer = httpMailer;
            }


            [Map(HttpMethod.POST, "/mail")]
            public HttpResponse PostMail(HttpRequest httpRequest)
            {
                using (FileStream fs = new FileStream("/tmp/post.txt", FileMode.Create, FileAccess.Write))
                    httpRequest.ContentStream.CopyTo(fs);
                
                return HttpResponse.NoContent();
            }
            
        }

        public void Dispose()
        {
            _httpRouter?.UnMap(this);
            _httpMailerEndpoints.Dispose();
        }
    }

    public enum SmtpEncryption
    {
        None,
        Tls,
        StartTls
    }
    
}