public override async System.Threading.Tasks.Task OnExceptionAsync(HttpActionExecutedContext actionExecutedContext, System.Threading.CancellationToken cancellationToken)
{
Logger.ErrorException("Exception accessing: " + actionExecutedContext.Request.RequestUri.AbsolutePath, actionExecutedContext.Exception);
var env = actionExecutedContext.ActionContext.Request.GetOwinEnvironment();
var options = env.ResolveDependency<IdentityServerOptions>();
var viewSvc = env.ResolveDependency<IViewService>();
var errorModel = new ErrorViewModel
{
SiteName = options.SiteName,
SiteUrl = env.GetIdentityServerBaseUrl(),
ErrorMessage = Resources.Messages.UnexpectedError,
};
var errorResult = new ErrorActionResult(viewSvc, errorModel);
actionExecutedContext.Response = await errorResult.GetResponseMessage();
}
private static async Task ValidateTokens(HttpActionContext actionContext)
{
var env = actionContext.Request.GetOwinEnvironment();
var success = actionContext.Request.Method == HttpMethod.Post &&
actionContext.Request.Content.IsFormData();
if (success)
{
// ReadAsByteArrayAsync buffers the request body stream
// we then put the buffered copy into the owin context
// so we can read it in the IsTokenValid API without
// disturbing the actual stream in the HttpRequestMessage
// that WebAPI uses it later for model binding. #lame
var bytes = await actionContext.Request.Content.ReadAsByteArrayAsync();
var ms = new MemoryStream(bytes);
ms.Seek(0, SeekOrigin.Begin);
var ctx = new OwinContext(env);
ctx.Request.Body = ms;
var antiForgeryToken = env.ResolveDependency<AntiForgeryToken>();
success = await antiForgeryToken.IsTokenValid();
}
if (!success)
{
Logger.ErrorFormat("AntiForgery validation failed -- returning error page");
var options = env.ResolveDependency<IdentityServerOptions>();
var viewSvc = env.ResolveDependency<IViewService>();
var localization = env.ResolveDependency<ILocalizationService>();
var errorModel = new ErrorViewModel
{
RequestId = env.GetRequestId(),
SiteName = options.SiteName,
SiteUrl = env.GetIdentityServerBaseUrl(),
ErrorMessage = localization.GetMessage(Resources.MessageIds.UnexpectedError),
CurrentUser = env.GetCurrentUserDisplayName(),
LogoutUrl = env.GetIdentityServerLogoutUrl(),
};
var errorResult = new ErrorActionResult(viewSvc, errorModel);
actionContext.Response = await errorResult.GetResponseMessage();
}
}
