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Episerver Federated security
using System;
using System.Configuration;
using System.Security.Claims;
using System.Threading.Tasks;
using System.Web.Helpers;
using EPiServer.Cms.UI.AspNetIdentity;
using EPiServer.Security;
using EPiServer.ServiceLocation;
using Microsoft.Owin;
using Microsoft.Owin.Extensions;
using Microsoft.Owin.Security;
using Microsoft.Owin.Security.Cookies;
using Microsoft.Owin.Security.WsFederation;
using Owin;
[assembly: OwinStartup(typeof(MyNamespace.Web.Startup))]
namespace MyNamespace.Web
{
public class Startup
{
const string LogoutUrl = "/util/logout.aspx";
public void Configuration(IAppBuilder app)
{
// Add CMS integration for ASP.NET Identity
app.AddCmsAspNetIdentity<ApplicationUser>();
//federated authentication
app.SetDefaultSignInAsAuthenticationType(WsFederationAuthenticationDefaults.AuthenticationType);
app.UseCookieAuthentication(new CookieAuthenticationOptions
{
AuthenticationType = WsFederationAuthenticationDefaults.AuthenticationType
});
app.UseWsFederationAuthentication(new WsFederationAuthenticationOptions()
{
//URL to federation server meta data
MetadataAddress = "https://myadfsserver.com/FederationMetadata/2007-06/FederationMetadata.xml",
//Value of Wtrealm must *exactly* match what is configured in the federation server
Wtrealm = ConfigurationManager.AppSettings["AdfsWtRealm"],
Notifications = new WsFederationAuthenticationNotifications()
{
RedirectToIdentityProvider = (ctx) =>
{
//To avoid a redirect loop to the federation server send 403 when user is authenticated but does not have access
if (ctx.OwinContext.Response.StatusCode == 401 && ctx.OwinContext.Authentication.User.Identity.IsAuthenticated)
{
ctx.OwinContext.Response.StatusCode = 403;
ctx.HandleResponse();
}
return Task.FromResult(0);
},
SecurityTokenValidated = (ctx) =>
{
//Ignore scheme/host name in redirect Uri to make sure a redirect to HTTPS does not redirect back to HTTP
var redirectUri = new Uri(ctx.AuthenticationTicket.Properties.RedirectUri, UriKind.RelativeOrAbsolute);
if (redirectUri.IsAbsoluteUri)
{
ctx.AuthenticationTicket.Properties.RedirectUri = redirectUri.PathAndQuery;
}
//Sync user and the roles to EPiServer in the background
ServiceLocator.Current.GetInstance<ISynchronizingUserService>().SynchronizeAsync(ctx.AuthenticationTicket.Identity);
return Task.FromResult(0);
}
}
});
//Add stage marker to make sure WsFederation runs on Authenticate (before URL Authorization and virtual roles)
app.UseStageMarker(PipelineStage.Authenticate);
//Remap logout to a federated logout
app.Map(LogoutUrl, map =>
{
map.Run(ctx =>
{
ctx.Authentication.SignOut();
return Task.FromResult(0);
});
});
//Tell antiforgery to use the name claim
AntiForgeryConfig.UniqueClaimTypeIdentifier = ClaimTypes.Name;
}
}
}
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