IIS Native Module RegisterModule function not invoked - c++

Question

I compiled IIS Native Module. If I compile 32bit and install in IIS. It gives error
The Module DLL ... failed to load. The data is the error. Data is 7E000000
If I compile 64 bit and install it in IIS, I have no error but module is not working.
I added code to write to log. When I use C:\Windows\System32\inetsrv\w3wp.exe in debugging property and debug it works and writes to log but when I use it in IIS neither RegisterModule is invoked, nor any of the notifications.
Any idea what may be wrong?
In Visual Studio elevated mode I can debug the dll just fine. Both 32 bit and 64 bit work just fine in debugging. It returns the data I want to return instead of returning actual page content. It is strange that same w3wp.exe running in IIS doesn't work with dll.
Update:
It works in Windows 7 IIS but doesn't work on Windows 10 IIS. Wondering what may be the difference.
main.cpp
#include "precomp.h"
#include <iostream>
#include <fstream>
#include <time.h>
using namespace std;
// Global server instance
IHttpServer * g_pHttpServer = NULL;
// Global module context id
PVOID g_pModuleContext = NULL;
#define DTTMFMT "%Y-%m-%d %H:%M:%S "
#define DTTMSZ 21
static char* getDtTm(char* buff) {
time_t t = time(0);
strftime(buff, DTTMSZ, DTTMFMT, localtime(&t));
return buff;
}
// The RegisterModule entrypoint implementation.
// This method is called by the server when the module DLL is
// loaded in order to create the module factory,
// and register for server events.
HRESULT
__stdcall
RegisterModule(
DWORD dwServerVersion,
IHttpModuleRegistrationInfo * pModuleInfo,
IHttpServer * pHttpServer
)
{
char buff[DTTMSZ];
ofstream myfile;
myfile.open("C:\\inetpub\\logs\\JCFilter.txt", ios::app);
myfile << getDtTm(buff);
myfile << " RegisterModule.\n";
myfile.close();
HRESULT hr = S_OK;
CJCFilterFactory * pFactory = NULL;
if ( pModuleInfo == NULL || pHttpServer == NULL )
{
hr = HRESULT_FROM_WIN32( ERROR_INVALID_PARAMETER );
goto Finished;
}
// step 1: save the IHttpServer and the module context id for future use
g_pModuleContext = pModuleInfo->GetId();
g_pHttpServer = pHttpServer;
// step 2: create the module factory
pFactory = new CJCFilterFactory();
if ( pFactory == NULL )
{
hr = HRESULT_FROM_WIN32( ERROR_NOT_ENOUGH_MEMORY );
goto Finished;
}
// step 3: register for server events
// TODO: register for more server events here
hr = pModuleInfo->SetRequestNotifications( pFactory, /* module factory */
RQ_ACQUIRE_REQUEST_STATE | RQ_BEGIN_REQUEST/* server event mask */,
0 /* server post event mask */);
if ( FAILED( hr ) )
{
goto Finished;
}
// Set the request priority.
hr = pModuleInfo->SetPriorityForRequestNotification(
RQ_BEGIN_REQUEST, PRIORITY_ALIAS_FIRST);
if (FAILED(hr))
{
goto Finished;
}
pFactory = NULL;
Finished:
if ( pFactory != NULL )
{
delete pFactory;
pFactory = NULL;
}
return hr;
}
JCFilter.cpp
#include "precomp.h"
#include <iostream>
#include <fstream>
#include <time.h>
using namespace std;
#define DTTMFMT "%Y-%m-%d %H:%M:%S "
#define DTTMSZ 21
static char* getDtTm(char* buff) {
time_t t = time(0);
strftime(buff, DTTMSZ, DTTMFMT, localtime(&t));
return buff;
}
// Implementation of the OnAcquireRequestState method
REQUEST_NOTIFICATION_STATUS
CJCFilter::OnAcquireRequestState(
IN IHttpContext * pHttpContext,
IN OUT IHttpEventProvider * pProvider
)
{
char buff[DTTMSZ];
ofstream myfile;
myfile.open("C:\\inetpub\\logs\\JCFilter.txt", ios::app);
myfile << getDtTm(buff);
myfile << " OnAcquireRequestState.\n";
myfile.close();
HRESULT hr = S_OK;
// TODO: implement the AcquireRequestState module functionality
Finished:
if ( FAILED( hr ) )
{
return RQ_NOTIFICATION_FINISH_REQUEST;
}
else
{
return RQ_NOTIFICATION_CONTINUE;
}
}
REQUEST_NOTIFICATION_STATUS
CJCFilter::OnBeginRequest(
IN IHttpContext* pHttpContext,
IN IHttpEventProvider* pProvider
)
{
char buff[DTTMSZ];
ofstream myfile;
myfile.open("C:\\inetpub\\logs\\JCFilter.txt", ios::app);
myfile << getDtTm(buff);
myfile << "OnBeginRequest.\n";
myfile.close();
UNREFERENCED_PARAMETER(pProvider);
// Create an HRESULT to receive return values from methods.
HRESULT hr;
// Retrieve a pointer to the response.
IHttpResponse* pHttpResponse = pHttpContext->GetResponse();
// Test for an error.
if (pHttpResponse != NULL)
{
// Clear the existing response.
pHttpResponse->Clear();
// Set the MIME type to plain text.
pHttpResponse->SetHeader(
HttpHeaderContentType, "text/plain",
(USHORT)strlen("text/plain"), TRUE);
// Create a string with the response.
PCSTR pszBuffer = "Hello World!";
// Create a data chunk.
HTTP_DATA_CHUNK dataChunk;
// Set the chunk to a chunk in memory.
dataChunk.DataChunkType = HttpDataChunkFromMemory;
// Buffer for bytes written of data chunk.
DWORD cbSent;
// Set the chunk to the buffer.
dataChunk.FromMemory.pBuffer =
(PVOID)pszBuffer;
// Set the chunk size to the buffer size.
dataChunk.FromMemory.BufferLength =
(USHORT)strlen(pszBuffer);
// Insert the data chunk into the response.
hr = pHttpResponse->WriteEntityChunks(
&dataChunk, 1, FALSE, TRUE, &cbSent);
// Test for an error.
if (FAILED(hr))
{
// Set the HTTP status.
pHttpResponse->SetStatus(500, "Server Error", 0, hr);
}
// End additional processing.
return RQ_NOTIFICATION_FINISH_REQUEST;
}
// Return processing to the pipeline.
return RQ_NOTIFICATION_CONTINUE;
}
// TODO: implement other desired event handler methods below