Hi Jan,

I'm sorry, I was busy at work and haven't visited the forum for a week. Here is what I have done to enable the https on some pages only:

Following the documentation: http://our.umbraco.org/documentation/Reference/Mvc/custom-controllers I have created the custom controller that inherits from RenderMvcController. Now all the pages are being routed through it. Then I have added a "Requires https" bool property to the master document type in the back office, so I can enable/disable it for each page. The custom controller is checking the property and is redirecting to https: if required. Here is the code:

using System;
using System.Web;
using System.Web.Mvc;
using MVC_Umbraco.Extensions;
using umbraco;
using umbraco.NodeFactory;
using Umbraco.Web.Models;
using Umbraco.Web.Mvc;

namespace MVC_Umbraco.Controllers
{
    public class CustomRenderMvcController : RenderMvcController
    {
        public override ActionResult Index(RenderModel model)
        {
            if (!RequiresHttps(this.Request) && (Request.Url.Scheme == Uri.UriSchemeHttps))
            {
                var httpuriBuilder = new UriBuilder(Request.Url.ToString())
                {
                    Scheme = Uri.UriSchemeHttp,
                    Port = -1 // default port for scheme
                };
                return Redirect(httpuriBuilder.ToString());
            }

            if (!RequiresHttps(this.Request))
                return base.Index(model);

            if (Request.Url.Scheme == Uri.UriSchemeHttps)
                return base.Index(model);

            var uriBuilder = new UriBuilder(Request.Url.ToString())
            {
                Scheme = Uri.UriSchemeHttps,
                Port = -1 // default port for scheme
            };
            return Redirect(uriBuilder.ToString());
        }

        private bool RequiresHttps(HttpRequestBase req)
        {
            try
            {
                Node n = uQuery.GetNodeByUrl(req.RawUrl);
                if (n == null)
                    return false;
                return n.GetPropertyData<bool>("requiresHttps");
            }
            catch (Exception)
            { }
            return false;
        }

    }
}

Thanks,

Kamil