/// <summary>
/// Called by <see cref="InvokeAsync" /> after initialization. If an authentication middleware responds directly to
/// specifically known paths it must override this function, compare the request path to it's known paths,
/// provide any response information as appropriate, and true to stop further processing.
/// </summary>
/// <returns>Returning false will cause the common code to call the next middleware in line. Returning true will
/// cause the common code to begin the async completion journey without calling the rest of the middleware
/// pipeline.</returns>
private async Task <bool> InvokeReplyPathAsync()
{
if (!Options.CallbackPath.HasValue || Options.CallbackPath != Request.Path)
{
return(false);
}
// TODO: error responses
var ticket = await AuthenticateAsync();
if (ticket == null)
{
_logger.WriteWarning("Invalid return state, unable to redirect.");
Response.StatusCode = 500;
return(true);
}
var context = new BungieReturnEndpointContext(Context, ticket)
{
SignInAsAuthenticationType = Options.SignInAsAuthenticationType,
RedirectUri = ticket.Properties.RedirectUri
};
await Options.Provider.ReturnEndpoint(context);
if (context.SignInAsAuthenticationType != null &&
context.Identity != null)
{
var grantIdentity = context.Identity;
if (!string.Equals(grantIdentity.AuthenticationType, context.SignInAsAuthenticationType, StringComparison.Ordinal))
{
grantIdentity = new ClaimsIdentity(grantIdentity.Claims, context.SignInAsAuthenticationType, grantIdentity.NameClaimType, grantIdentity.RoleClaimType);
}
Context.Authentication.SignIn(context.Properties, grantIdentity);
}
if (context.IsRequestCompleted || context.RedirectUri == null)
{
return(context.IsRequestCompleted);
}
var redirectUri = context.RedirectUri;
if (context.Identity == null)
{
// add a redirect hint that sign-in failed in some way
redirectUri = WebUtilities.AddQueryString(redirectUri, "error", "access_denied");
}
Response.Redirect(redirectUri);
context.RequestCompleted();
return(context.IsRequestCompleted);
}
/// <summary>
/// Invoked prior to the <see cref="System.Security.Claims.ClaimsIdentity"/> being saved in a local cookie and the browser being redirected to the originally requested URL.
/// </summary>
/// <param name="context"></param>
/// <returns>A <see cref="Task"/> representing the completed operation.</returns>
public virtual Task ReturnEndpoint(BungieReturnEndpointContext context)
{
return(OnReturnEndpoint(context));
}