/// <summary>
/// Called when a process requests authorization for the marked callback action.
/// </summary>
/// <param name="filterContext">The filter context, which encapsulates information for using <see cref="T:Revalee.Client.Mvc.CallbackActionAttribute" />.</param>
/// <exception cref="T:System.ArgumentNullException">The <paramref name="filterContext" /> parameter is null.</exception>
public void OnAuthorization(AuthorizationFilterContext filterContext)
{
if (filterContext == null)
{
Debug.Fail("Revalee Error", $"Revalee::{nameof(AuthorizationFilterContext)} parameter of {nameof(OnAuthorization)} method of {nameof(CallbackActionAttribute)} is null");
throw new ArgumentNullException(nameof(filterContext));
}
_revalee = (IRevaleeRegistrar)filterContext.HttpContext.RequestServices.GetService(typeof(IRevaleeRegistrar));
_callBackState = (ICallbackStateCache)filterContext.HttpContext.RequestServices.GetService(typeof(ICallbackStateCache));
if (filterContext.HttpContext == null ||
filterContext.HttpContext.Request == null ||
!_revalee.ValidateCallback(filterContext.HttpContext)) // (filterContext.HttpContext.Request))
{
filterContext.Result = new UnauthorizedResult();
}
}
public Task Invoke(HttpContext context)
{
try
{
TaskManifest _manifest = LoadedManifest(context).Result;
if (context?.Request != null && _manifest != null)
{
var request = context.Request;
RequestAnalysis analysis = _manifest.AnalyzeRequest(context.Request).Result;
if (analysis.IsRecurringTask)
{
ConfiguredTask taskConfig;
HttpStatusCode statusCode;
if (_manifest.TryGetTask(analysis.TaskIdentifier, out taskConfig))
{
if (request.Method == "POST")
{
if (_revalee.ValidateCallback(context))
{
if (taskConfig.SetLastOccurrence(analysis.Occurrence))
{
_manifest.Reschedule(taskConfig).Wait();
context.Items.Add(RouteKeys.IN_PROCESS_CONTEXT_KEY, BuildCallbackDetails(request, taskConfig.Identifier));
context.Request.Path = new PathString(taskConfig.Url.AbsolutePath);
goto Continue;
}
else
{
statusCode = HttpStatusCode.Accepted;
}
}
else
{
statusCode = HttpStatusCode.Unauthorized;
}
}
else
{
if (request.Method == "GET" || request.Method == "HEAD")
{
if (request.Headers["Expect"] == "100-continue")
{
context.Response.StatusCode = (int)HttpStatusCode.Continue;
goto Continue;
}
else
{
statusCode = HttpStatusCode.MethodNotAllowed;
}
}
else
{
statusCode = HttpStatusCode.NotImplemented;
}
}
}
else
{
statusCode = HttpStatusCode.NoContent;
}
context.Response.StatusCode = (int)statusCode;
return(context.Response.WriteAsync(""));
}
}
}
catch (Exception ex)
{
}
Continue:
return(_next(context));
}
