private async Task CheckForRefreshAsync(AuthenticationTicket ticket)
{
var currentUtc = Clock.UtcNow;
var issuedUtc = ticket.Properties.IssuedUtc;
var expiresUtc = ticket.Properties.ExpiresUtc;
var allowRefresh = ticket.Properties.AllowRefresh ?? true;
if (issuedUtc != null && expiresUtc != null && Options.SlidingExpiration && allowRefresh)
{
var timeElapsed = currentUtc.Subtract(issuedUtc.Value);
var timeRemaining = expiresUtc.Value.Subtract(currentUtc);
var eventContext = new CookieSlidingExpirationContext(Context, Scheme, Options, ticket, timeElapsed, timeRemaining)
{
ShouldRenew = timeRemaining < timeElapsed,
};
await Options.Events.OnCheckSlidingExpiration(eventContext);
if (eventContext.ShouldRenew)
{
RequestRefresh(ticket);
}
}
}
/// <summary> /// Invoked to check if the cookie should be renewed. /// </summary> /// <param name="context">The <see cref="CookieSlidingExpirationContext"/>.</param> public virtual Task CheckSlidingExpiration(CookieSlidingExpirationContext context) => OnCheckSlidingExpiration(context);
