private async Task <LoggedOutViewModel> BuildLoggedOutViewModelAsync(string logoutId) { // get context information (client name, post logout redirect URI and iframe for federated signout) var logout = await _interaction.GetLogoutContextAsync(logoutId); var vm = new LoggedOutViewModel { AutomaticRedirectAfterSignOut = AccountOptions.AutomaticRedirectAfterSignOut, PostLogoutRedirectUri = logout?.PostLogoutRedirectUri, ClientName = string.IsNullOrEmpty(logout?.ClientName) ? logout?.ClientId : logout?.ClientName, SignOutIframeUrl = logout?.SignOutIFrameUrl, LogoutId = logoutId }; if (User?.Identity.IsAuthenticated == true) { var idp = User.FindFirst(JwtClaimTypes.IdentityProvider)?.Value; if (idp != null && idp != IdentityServer4.IdentityServerConstants.LocalIdentityProvider) { var providerSupportsSignout = await HttpContext.GetSchemeSupportsSignOutAsync(idp); if (providerSupportsSignout) { if (vm.LogoutId == null) { // if there's no current logout context, we need to create one // this captures necessary info from the current logged in user // before we signout and redirect away to the external IdP for signout vm.LogoutId = await _interaction.CreateLogoutContextAsync(); } vm.ExternalAuthenticationScheme = idp; } } } return(vm); }
//[ValidateAntiForgeryToken] public ActionResult CacheLoggedOut(LoggedOutViewModel m) { return(View(m)); }