protected override Task ApplyResponseChallengeAsync()
{
if (Response.StatusCode != 401)
{
return(Task.FromResult <object>(null));
}
AuthenticationResponseChallenge challenge = Helper.LookupChallenge(Options.AuthenticationType, Options.AuthenticationMode);
if (challenge != null)
{
string requestPrefix = Request.Scheme + Uri.SchemeDelimiter + Request.Host;
AuthenticationProperties properties = challenge.Properties;
if (String.IsNullOrEmpty(properties.RedirectUri))
{
properties.RedirectUri = requestPrefix + Request.PathBase + Request.Path + Request.QueryString;
}
// OAuth2 10.12 CSRF
GenerateCorrelationId(properties);
string returnTo = BuildReturnTo(Options.StateDataFormat.Protect(properties));
string authorizationEndpoint =
Options.CasServerUrlBase + "/login" +
"?service=" + Uri.EscapeDataString(returnTo);
if (properties.Dictionary.ContainsKey("renew") && properties.Dictionary["renew"] == "true")
{
authorizationEndpoint += "&renew=true";
}
var redirectContext = new CasApplyRedirectContext(
Context, Options,
properties, authorizationEndpoint);
Options.Provider.ApplyRedirect(redirectContext);
}
return(Task.FromResult <object>(null));
}
/// <summary>
/// Called when a Challenge causes a redirect to authorize endpoint in the Google OAuth 2.0 middleware
/// </summary>
/// <param name="context">Contains redirect URI and <see cref="AuthenticationProperties"/> of the challenge </param>
public virtual void ApplyRedirect(CasApplyRedirectContext context)
{
OnApplyRedirect(context);
}