private async Task <IHttpActionResult> RenderLoginPage(SignInMessage message, string signInMessageId, string errorMessage = null, string username = null, bool rememberMe = false)
{
if (message == null)
{
throw new ArgumentNullException("message");
}
username = GetUserNameForLoginPage(message, username);
var isLocalLoginAllowedForClient = await IsLocalLoginAllowedForClient(message);
var isLocalLoginAllowed = isLocalLoginAllowedForClient && options.AuthenticationOptions.EnableLocalLogin;
var idpRestrictions = await clientStore.GetIdentityProviderRestrictionsAsync(message.ClientId);
var providers = context.GetExternalAuthenticationProviders(idpRestrictions);
var providerLinks = context.GetLinksFromProviders(providers, signInMessageId);
var visibleLinks = providerLinks.FilterHiddenLinks();
if (errorMessage != null)
{
Logger.InfoFormat("rendering login page with error message: {0}", errorMessage);
}
else
{
if (isLocalLoginAllowed == false)
{
if (options.AuthenticationOptions.EnableLocalLogin)
{
Logger.Info("local login disabled");
}
if (isLocalLoginAllowedForClient)
{
Logger.Info("local login disabled for the client");
}
string url = null;
if (!providerLinks.Any())
{
Logger.Info("no providers registered for client");
return(RenderErrorPage());
}
else if (providerLinks.Count() == 1)
{
Logger.Info("only one provider for client");
url = providerLinks.First().Href;
}
else if (visibleLinks.Count() == 1)
{
Logger.Info("only one visible provider");
url = visibleLinks.First().Href;
}
if (url.IsPresent())
{
Logger.InfoFormat("redirecting to provider URL: {0}", url);
return(Redirect(url));
}
}
Logger.Info("rendering login page");
}
var loginPageLinks = options.AuthenticationOptions.LoginPageLinks.Render(Request.GetIdentityServerBaseUrl(), signInMessageId);
var loginModel = new LoginViewModel
{
RequestId = context.GetRequestId(),
SiteName = options.SiteName,
SiteUrl = Request.GetIdentityServerBaseUrl(),
ExternalProviders = visibleLinks,
AdditionalLinks = loginPageLinks,
ErrorMessage = errorMessage,
LoginUrl = isLocalLoginAllowed ? Url.Route(Constants.RouteNames.Login, new { signin = signInMessageId }) : null,
AllowRememberMe = options.AuthenticationOptions.CookieOptions.AllowRememberMe,
RememberMe = options.AuthenticationOptions.CookieOptions.AllowRememberMe && rememberMe,
CurrentUser = context.GetCurrentUserDisplayName(),
LogoutUrl = context.GetIdentityServerLogoutUrl(),
AntiForgery = antiForgeryToken.GetAntiForgeryToken(),
Username = username
};
return(new LoginActionResult(viewService, loginModel, message));
}