protected virtual async Task <bool> HandleRemoteCallbackAsync()
{
var authResult = await HandleRemoteAuthenticateAsync();
if (authResult != null && authResult.Skipped)
{
return(false);
}
if (authResult == null || !authResult.Succeeded)
{
var errorContext = new FailureContext(Context, authResult?.Failure ?? new Exception("Invalid return state, unable to redirect."));
Logger.RemoteAuthenticationError(errorContext.Failure.Message);
await Options.Events.RemoteFailure(errorContext);
if (errorContext.HandledResponse)
{
return(true);
}
if (errorContext.Skipped)
{
return(false);
}
throw new AggregateException("Unhandled remote failure.", errorContext.Failure);
}
// We have a ticket if we get here
var ticket = authResult.Ticket;
var context = new TicketReceivedContext(Context, Options, ticket)
{
ReturnUri = ticket.Properties.RedirectUri,
};
// REVIEW: is this safe or good?
ticket.Properties.RedirectUri = null;
await Options.Events.TicketReceived(context);
if (context.HandledResponse)
{
Logger.SigninHandled();
return(true);
}
else if (context.Skipped)
{
Logger.SigninSkipped();
return(false);
}
await Context.Authentication.SignInAsync(Options.SignInScheme, context.Principal, context.Properties);
// Default redirect path is the base path
if (string.IsNullOrEmpty(context.ReturnUri))
{
context.ReturnUri = "/";
}
Response.Redirect(context.ReturnUri);
return(true);
}
/// <summary> /// Invoked when there is a remote failure /// </summary> public virtual Task RemoteFailure(FailureContext context) => OnRemoteFailure(context);
// Handle sign-in errors differently than generic errors.
private Task OnAuthenticationFailed(FailureContext context)
{
context.HandleResponse();
context.Response.Redirect("/Home/Error?message=" + context.Failure.Message);
return Task.FromResult(0);
}
/// <summary> /// Invoked when there is a remote failure /// </summary> public virtual Task RemoteFailure(FailureContext context) => OnRemoteFailure(context);