Saml No Cookie Preserving State ASP.NET CORE

Aug 20 2020
 var certbase = _env.IsDevelopment() ? "" : AppDomain.CurrentDomain.BaseDirectory;
 var pathpfx = Path.Combine(certbase, "xxxxx.pfx");
 var pathxml = Path.Combine(certbase, "metadata.xml");


.AddSaml2(options =>
                {  
                    options.SPOptions.EntityId = new EntityId("https://aaaa.aaa.com.tr");          
                    options.SPOptions.ReturnUrl = new Uri("https://localhost:5003/Account/SignInPost");
                    options.SPOptions.MinIncomingSigningAlgorithm = 
 "http://www.w3.org/2000/09/xmldsig#rsa-sha1";
                    options.IdentityProviders.Add(
                    new IdentityProvider(
                    new EntityId("https://bbbbb.bbb.com.tr"), options.SPOptions)
                    {
                        MetadataLocation = pathxml,
                        LoadMetadata = true,
                        SingleSignOnServiceUrl = new Uri("https://bbbbb.bbb.com.tr/SAML/SSOService.aspx"),
                        Binding = Sustainsys.Saml2.WebSso.Saml2Binding.UriToSaml2BindingType(new 
 Uri("urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect")),
                        SingleLogoutServiceUrl = new Uri("https://bbbbb.bbb.com.tr/SAML/SLOService.aspx"),
                    });
                    options.SPOptions.ServiceCertificates.Add(new X509Certificate2(pathpfx, "password"));
                });

Mi saml estaba funcionando correctamente pero no sé qué sucedió, mi código no funcionaba ahora.

Recibí este error cuando ejecuto mi código en Chrome =>

UnexpectedInResponseToException: el mensaje recibido _55ae387d-0b1e-4466-9b2b-d34a5254437c contiene InResponseTo inesperado "iddfcfd98961654500864ee897d823ce87". No se encontró ningún estado de conservación de cookies de la solicitud, por lo que no se esperaba que el mensaje tuviera un atributo InResponseTo. Este error suele ocurrir si se ha perdido la cookie configurada al realizar el inicio de sesión iniciado por SP.

Mi metadata.xml está bien, mi pfx también está bien.

He estado buscando resolver mi problema más de 2 días, pero no pude encontrar nada que me ayude. ¿Cuál es tu propuesta para solucionar este problema? ¿usted me podría ayudar?

dentro de la pila

UnexpectedInResponseToException: Received message _63021ef9-2b93-4b0a-ab75-88d42e8a4c9c contains unexpected InResponseTo "idc0faf551a5bf421da3a9e582b57f685a". No cookie preserving state from the request was found so the message was not expected to have an InResponseTo attribute. This error typically occurs if the cookie set when doing SP-initiated sign on have been lost.



Sustainsys.Saml2.Saml2P.Saml2Response.ValidateInResponseTo(IOptions options, IEnumerable<ClaimsIdentity> claimsIdentities)
Sustainsys.Saml2.Saml2P.Saml2Response.GetClaims(IOptions options, IDictionary<string, string> relayData)
Sustainsys.Saml2.WebSso.AcsCommand.ProcessResponse(IOptions options, Saml2Response samlResponse, StoredRequestState storedRequestState, IdentityProvider identityProvider, string relayState)
Sustainsys.Saml2.WebSso.AcsCommand.Run(HttpRequestData request, IOptions options)
Sustainsys.Saml2.AspNetCore2.Saml2Handler.HandleRequestAsync()
Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)

Respuestas

1 İbrahim Sep 02 2020 at 08:41

establezca esto en startup.cs

services.Configure<CookiePolicyOptions>(options =>
        {
            // This lambda determines whether user consent for non-essential cookies is needed for a given request.
            options.OnAppendCookie = cookieContext => SameSite.CheckSameSite(cookieContext.Context, cookieContext.CookieOptions);
            options.OnDeleteCookie = cookieContext => SameSite.CheckSameSite(cookieContext.Context, cookieContext.CookieOptions);

            //this is important. this will help you to solve the problem.
            options.MinimumSameSitePolicy = SameSiteMode.None;
        });

y agregue este método en el public void configure () {}

 public static class SameSite
    {
        public static void CheckSameSite(HttpContext httpContext, CookieOptions options)
        {
            if (options.SameSite == SameSiteMode.None)
            {
                if (!BrowserSupportsSameSiteNone(httpContext.Request.Headers["User-Agent"].ToString()))
                {
                    // Unspecified - no SameSite will be included in the Set-Cookie.
                    options.SameSite = (SameSiteMode)(-1);
                }
            }
        }

        private static bool BrowserSupportsSameSiteNone(string userAgent)
        {
            // iOS 12 browsers don't support SameSite=None.
            if (userAgent.Contains("CPU iPhone OS 12") || userAgent.Contains("iPad; CPU OS 12"))
            {
                return false;
            }

            // macOS 10.14 Mojave browsers don't support SameSite=None.
            if (userAgent.Contains("Macintosh; Intel Mac OS X 10_14") && userAgent.Contains("Version/") && userAgent.Contains("Safari"))
            {
                return false;
            }

            // Old versions of Chrome don't support SameSite=None.
            if (userAgent.Contains("Chrome") || userAgent.Contains("Chrome/6"))
            {
                return false;
            }

            return true;
        }
    }