How to manipulate a header and then continue with it in C#?
- by Simon Linder
Hi all,
I want to replace an old ISAPI filter that ran on IIS6. This filter checks if the request is of a special kind, then manipulates the header and continues with the request. Two headers are added in the manipulating method that I need for calling another special ISAPI module.
So I have ISAPI C++ code like:
DWORD OnPreProc(HTTP_FILTER_CONTEXT *pfc, HTTP_FILTER_PREPROC_HEADERS *pHeaders)
{
if (ManipulateHeaderInSomeWay(pfc, pHeaders))
{
return SF_STATUS_REQ_NEXT_NOTIFICATION;
}
return SF_STATUS_REQ_FINISHED;
}
I now want to rewrite this ISAPI filter as a managed module for the IIS7. So I have something like this:
private void OnMapRequestHandler(HttpContext context)
{
ManipulateHeaderInSomeWay(context);
}
And now what? The request seems not to do what it should?
I already wrote an IIS7 native module that implements the same method. But this method has a return value with which I can tell what to do next:
REQUEST_NOTIFICATION_STATUS CMyModule::OnMapRequestHandler(IN IHttpContext *pHttpContext, OUT IMapHandlerProvider *pProvider)
{
if (DoSomething(pHttpContext))
{
return RQ_NOTIFICATION_CONTINUE;
}
return RQ_NOTIFICATION_FINISH_REQUEST;
}
So is there a way to send my manipulated context again?
