public async virtual Task SignOutAsync(AuthenticationProperties properties)
{
var target = ResolveTarget(Options.ForwardSignOut);
if (target != null)
{
await Context.SignOutAsync(target, properties);
return;
}
string authenticationRequestId = Guid.NewGuid().ToString();
var requestProperties = new AuthenticationProperties();
requestProperties.Load(Request, Options.StateDataFormat);
// Extract the user state from properties and reset.
var idpName = requestProperties.GetIdentityProviderName();
var subjectNameId = requestProperties.GetSubjectNameId();
var sessionIndex = requestProperties.GetSessionIndex();
var idp = Options.IdentityProviders.FirstOrDefault(i => i.Name == idpName);
var securityTokenCreatingContext = await _eventsHandler.HandleSecurityTokenCreatingContext(Context, Scheme, Options, properties, authenticationRequestId);
var message = SamlHandler.GetLogoutRequest(
authenticationRequestId,
securityTokenCreatingContext.TokenOptions.EntityId,
securityTokenCreatingContext.TokenOptions.Certificate,
idp,
subjectNameId,
sessionIndex);
var(redirectHandled, afterRedirectMessage) = await _eventsHandler.HandleRedirectToIdentityProviderForSignOut(Context, Scheme, Options, properties, message);
if (redirectHandled)
{
return;
}
message = afterRedirectMessage;
properties.SetLogoutRequest(message);
properties.Save(Response, Options.StateDataFormat);
await _requestGenerator.HandleRequest(message,
message.ID,
securityTokenCreatingContext.TokenOptions.Certificate,
idp.SingleSignOutServiceUrl,
idp.Method);
}
