Esempio n. 1
0
void CTestRandTerm::RunL()
	{
	iCount = 0;
	iState = EIdle;
	iSeed = 1;
    Test.Printf(_L("Waiting for Port\r\n"));
	ZeroTerminate();
	iWriter->Ready();
	iTimer->After(1000000);
	iState = EWaitReady;
	}
Esempio n. 2
0
void CTestXonXoff::RunL()
	{
	iCount = 0;
	iState = EIdle;
	iSeed = 1;
    Test.Printf(_L("Waiting for Port\r\n"));
	ZeroTerminate();

	iWriter->Ready();
	iTimer->After(1000000);
	
//	iState = EWaitReady;
//	WriteComplete(0);
	}
Esempio n. 3
0
REQUEST_NOTIFICATION_STATUS
CMyHttpModule::OnBeginRequest(
    IN IHttpContext * pHttpContext,
    IN IHttpEventProvider * pProvider
)
{
    HRESULT                         hr                  = S_OK;
    IHttpRequest*                   pRequest            = NULL;
	MODSECURITY_STORED_CONTEXT*		pConfig = NULL;
    
    UNREFERENCED_PARAMETER ( pProvider );

	EnterCriticalSection(&m_csLock);

    if ( pHttpContext == NULL ) 
    {
        hr = E_UNEXPECTED;
        goto Finished;
    }

    pRequest = pHttpContext->GetRequest();

    if ( pRequest == NULL )
    {
        hr = E_UNEXPECTED;
        goto Finished;
    }

    hr = MODSECURITY_STORED_CONTEXT::GetConfig(pHttpContext, &pConfig );
    
    if ( FAILED( hr ) )
    {
        //hr = E_UNEXPECTED;
		hr = S_OK;
        goto Finished;
    }

	// If module is disabled, dont go any further
	//
	if( pConfig->GetIsEnabled() == false )
	{
        goto Finished;
	}

	// every 3 seconds we check for changes in config file
	//
	DWORD ctime = GetTickCount();

	if(pConfig->m_Config == NULL || (ctime - pConfig->m_dwLastCheck) > 3000)
	{
		char *path;
		USHORT pathlen;

		hr = pConfig->GlobalWideCharToMultiByte(pConfig->GetPath(), wcslen(pConfig->GetPath()), &path, &pathlen);

		if ( FAILED( hr ) )
		{
			hr = E_UNEXPECTED;
			goto Finished;
		}

		WIN32_FILE_ATTRIBUTE_DATA fdata;
		BOOL ret;

		ret = GetFileAttributesEx(path, GetFileExInfoStandard, &fdata);

		pConfig->m_dwLastCheck = ctime;

		if(pConfig->m_Config == NULL || (ret != 0 && (pConfig->m_LastChange.dwLowDateTime != fdata.ftLastWriteTime.dwLowDateTime ||
			pConfig->m_LastChange.dwHighDateTime != fdata.ftLastWriteTime.dwHighDateTime)))
		{
			pConfig->m_LastChange.dwLowDateTime = fdata.ftLastWriteTime.dwLowDateTime;
			pConfig->m_LastChange.dwHighDateTime = fdata.ftLastWriteTime.dwHighDateTime;

			pConfig->m_Config = modsecGetDefaultConfig();

			PCWSTR servpath = pHttpContext->GetApplication()->GetApplicationPhysicalPath();
			char *apppath;
			USHORT apppathlen;

			hr = pConfig->GlobalWideCharToMultiByte((WCHAR *)servpath, wcslen(servpath), &apppath, &apppathlen);

			if ( FAILED( hr ) )
			{
				delete path;
				hr = E_UNEXPECTED;
				goto Finished;
			}

			if(path[0] != 0)
			{
				const char * err = modsecProcessConfig((directory_config *)pConfig->m_Config, path, apppath);

				if(err != NULL)
				{
					WriteEventViewerLog(err, EVENTLOG_ERROR_TYPE);
					delete apppath;
					delete path;
					goto Finished;
				}
			}
			delete apppath;
		}
		delete path;
	}

	conn_rec *c;
	request_rec *r;

	c = modsecNewConnection();

	modsecProcessConnection(c);

	r = modsecNewRequest(c, (directory_config *)pConfig->m_Config);

	// on IIS we force input stream inspection flag, because its absence does not add any performance gain
	// it's because on IIS request body must be restored each time it was read
	//
	modsecSetConfigForIISRequestBody(r);

	REQUEST_STORED_CONTEXT *rsc = new REQUEST_STORED_CONTEXT();

	rsc->m_pConnRec = c;
	rsc->m_pRequestRec = r;
	rsc->m_pHttpContext = pHttpContext;
	rsc->m_pProvider = pProvider;

	pHttpContext->GetModuleContextContainer()->SetModuleContext(rsc, g_pModuleContext);

	StoreIISContext(r, rsc);

	HTTP_REQUEST *req = pRequest->GetRawHttpRequest();

	r->hostname = ConvertUTF16ToUTF8(req->CookedUrl.pHost, req->CookedUrl.HostLength / sizeof(WCHAR), r->pool);
	r->path_info = ConvertUTF16ToUTF8(req->CookedUrl.pAbsPath, req->CookedUrl.AbsPathLength / sizeof(WCHAR), r->pool);

	if(r->hostname == NULL)
	{
		if(req->Headers.KnownHeaders[HttpHeaderHost].pRawValue != NULL)
			r->hostname = ZeroTerminate(req->Headers.KnownHeaders[HttpHeaderHost].pRawValue,
										req->Headers.KnownHeaders[HttpHeaderHost].RawValueLength, r->pool);
	}

	int port = 0;
	char *port_str = NULL;

	if(r->hostname != NULL)
	{
		int k = 0;
		char *ptr = (char *)r->hostname;

		while(*ptr != 0 && *ptr != ':')
			ptr++;

		if(*ptr == ':')
		{
			*ptr = 0;
			port_str = ptr + 1;
			port = atoi(port_str);
		}
	}

	if(req->CookedUrl.pQueryString != NULL && req->CookedUrl.QueryStringLength > 0)
		r->args = ConvertUTF16ToUTF8(req->CookedUrl.pQueryString + 1, (req->CookedUrl.QueryStringLength / sizeof(WCHAR)) - 1, r->pool);

#define _TRANSHEADER(id,str) if(req->Headers.KnownHeaders[id].pRawValue != NULL) \
	{\
		apr_table_setn(r->headers_in, str, \
			ZeroTerminate(req->Headers.KnownHeaders[id].pRawValue, req->Headers.KnownHeaders[id].RawValueLength, r->pool)); \
	}

    _TRANSHEADER(HttpHeaderCacheControl, "Cache-Control");
    _TRANSHEADER(HttpHeaderConnection, "Connection");
    _TRANSHEADER(HttpHeaderDate, "Date");
    _TRANSHEADER(HttpHeaderKeepAlive, "Keep-Alive");             
    _TRANSHEADER(HttpHeaderPragma, "Pragma");                
    _TRANSHEADER(HttpHeaderTrailer, "Trailer");               
    _TRANSHEADER(HttpHeaderTransferEncoding, "Transfer-Encoding");      
    _TRANSHEADER(HttpHeaderUpgrade, "Upgrade");               
    _TRANSHEADER(HttpHeaderVia, "Via");                   
    _TRANSHEADER(HttpHeaderWarning, "Warning");               
    _TRANSHEADER(HttpHeaderAllow, "Allow");                 
    _TRANSHEADER(HttpHeaderContentLength, "Content-Length");         
    _TRANSHEADER(HttpHeaderContentType, "Content-Type");           
    _TRANSHEADER(HttpHeaderContentEncoding, "Content-Encoding");       
    _TRANSHEADER(HttpHeaderContentLanguage, "Content-Language");       
    _TRANSHEADER(HttpHeaderContentLocation, "Content-Location");       
    _TRANSHEADER(HttpHeaderContentMd5, "Content-Md5");            
    _TRANSHEADER(HttpHeaderContentRange, "Content-Range");          
    _TRANSHEADER(HttpHeaderExpires, "Expires");               
    _TRANSHEADER(HttpHeaderLastModified, "Last-Modified");          
    _TRANSHEADER(HttpHeaderAccept, "Accept");                
    _TRANSHEADER(HttpHeaderAcceptCharset, "Accept-Charset");        
    _TRANSHEADER(HttpHeaderAcceptEncoding, "Accept-Encoding");        
    _TRANSHEADER(HttpHeaderAcceptLanguage, "Accept-Language");        
    _TRANSHEADER(HttpHeaderAuthorization, "Authorization");         
    _TRANSHEADER(HttpHeaderCookie, "Cookie");                
    _TRANSHEADER(HttpHeaderExpect, "Expect");                
    _TRANSHEADER(HttpHeaderFrom, "From");                  
    _TRANSHEADER(HttpHeaderHost, "Host");                  
    _TRANSHEADER(HttpHeaderIfMatch, "If-Match");               
    _TRANSHEADER(HttpHeaderIfModifiedSince, "If-Modified-Since");       
    _TRANSHEADER(HttpHeaderIfNoneMatch, "If-None-Match");           
    _TRANSHEADER(HttpHeaderIfRange, "If-Range");               
    _TRANSHEADER(HttpHeaderIfUnmodifiedSince, "If-Unmodified-Since");     
    _TRANSHEADER(HttpHeaderMaxForwards, "Max-Forwards");           
    _TRANSHEADER(HttpHeaderProxyAuthorization, "Proxy-Authorization");    
    _TRANSHEADER(HttpHeaderReferer, "Referer");               
    _TRANSHEADER(HttpHeaderRange, "Range");                 
    _TRANSHEADER(HttpHeaderTe, "TE");                    
    _TRANSHEADER(HttpHeaderTranslate, "Translate");             
    _TRANSHEADER(HttpHeaderUserAgent, "User-Agent");

#undef _TRANSHEADER

	for(int i = 0; i < req->Headers.UnknownHeaderCount; i++)
	{
		apr_table_setn(r->headers_in, 
			ZeroTerminate(req->Headers.pUnknownHeaders[i].pName, req->Headers.pUnknownHeaders[i].NameLength, r->pool), 
			ZeroTerminate(req->Headers.pUnknownHeaders[i].pRawValue, req->Headers.pUnknownHeaders[i].RawValueLength, r->pool));
	}

	r->content_encoding = apr_table_get(r->headers_in, "Content-Encoding");
	r->content_type = apr_table_get(r->headers_in, "Content-Type");

	const char *lng = apr_table_get(r->headers_in, "Content-Languages");

	if(lng != NULL)
	{
		r->content_languages = apr_array_make(r->pool, 1, sizeof(const char *));

		*(const char **)apr_array_push(r->content_languages) = lng;
	}

	switch(req->Verb)
	{
	case HttpVerbUnparsed:
	case HttpVerbUnknown:
	case HttpVerbInvalid:
    case HttpVerbTRACK:  // used by Microsoft Cluster Server for a non-logged trace
    case HttpVerbSEARCH:
	default:
		r->method = "INVALID";
		r->method_number = M_INVALID;
		break;
	case HttpVerbOPTIONS:
		r->method = "OPTIONS";
		r->method_number = M_OPTIONS;
		break;
	case HttpVerbGET:
	case HttpVerbHEAD:
		r->method = "GET";
		r->method_number = M_GET;
		break;
	case HttpVerbPOST:
		r->method = "POST";
		r->method_number = M_POST;
		break;
    case HttpVerbPUT:
		r->method = "PUT";
		r->method_number = M_PUT;
		break;
    case HttpVerbDELETE:
		r->method = "DELETE";
		r->method_number = M_DELETE;
		break;
    case HttpVerbTRACE:
		r->method = "TRACE";
		r->method_number = M_TRACE;
		break;
    case HttpVerbCONNECT:
		r->method = "CONNECT";
		r->method_number = M_CONNECT;
		break;
    case HttpVerbMOVE:
		r->method = "MOVE";
		r->method_number = M_MOVE;
		break;
    case HttpVerbCOPY:
		r->method = "COPY";
		r->method_number = M_COPY;
		break;
    case HttpVerbPROPFIND:
		r->method = "PROPFIND";
		r->method_number = M_PROPFIND;
		break;
    case HttpVerbPROPPATCH:
		r->method = "PROPPATCH";
		r->method_number = M_PROPPATCH;
		break;
    case HttpVerbMKCOL:
		r->method = "MKCOL";
		r->method_number = M_MKCOL;
		break;
    case HttpVerbLOCK:
		r->method = "LOCK";
		r->method_number = M_LOCK;
		break;
    case HttpVerbUNLOCK:
		r->method = "UNLOCK";
		r->method_number = M_UNLOCK;
		break;
	}

	if(HTTP_EQUAL_VERSION(req->Version, 0, 9))
		r->protocol = "HTTP/0.9";
	else if(HTTP_EQUAL_VERSION(req->Version, 1, 0))
		r->protocol = "HTTP/1.0";
	else
		r->protocol = "HTTP/1.1";

	r->request_time = apr_time_now();

	r->parsed_uri.scheme = "http";
	r->parsed_uri.path = r->path_info;
	r->parsed_uri.hostname = (char *)r->hostname;
	r->parsed_uri.is_initialized = 1;
	r->parsed_uri.port = port;
	r->parsed_uri.port_str = port_str;
	r->parsed_uri.query = r->args;
	r->parsed_uri.dns_looked_up = 0;
	r->parsed_uri.dns_resolved = 0;
	r->parsed_uri.password = NULL;
	r->parsed_uri.user = NULL;
	r->parsed_uri.fragment = NULL;

	r->unparsed_uri = ZeroTerminate(req->pRawUrl, req->RawUrlLength, r->pool);
	r->uri = r->unparsed_uri;

	r->the_request = (char *)apr_palloc(r->pool, strlen(r->method) + 1 + req->RawUrlLength + 1 + strlen(r->protocol) + 1);

	strcpy(r->the_request, r->method);
	strcat(r->the_request, " ");
	strcat(r->the_request, r->uri);
	strcat(r->the_request, " ");
	strcat(r->the_request, r->protocol);

	HTTP_REQUEST_ID httpRequestID;
	char *pszValue = (char *)apr_palloc(r->pool, 24);

	httpRequestID = pRequest->GetRawHttpRequest()->RequestId;

	_ui64toa(httpRequestID, pszValue, 10);

	apr_table_setn(r->subprocess_env, "UNIQUE_ID", pszValue);

	PSOCKADDR pAddr = pRequest->GetRemoteAddress();

#if AP_SERVER_MAJORVERSION_NUMBER > 1 && AP_SERVER_MINORVERSION_NUMBER < 3
    c->remote_addr = CopySockAddr(r->pool, pAddr);
    c->remote_ip = GetIpAddr(r->pool, pAddr);
#else
    c->client_addr = CopySockAddr(r->pool, pAddr);
	c->client_ip = GetIpAddr(r->pool, pAddr);
#endif
	c->remote_host = NULL;

	int status = modsecProcessRequest(r);

	if(status != DECLINED)
	{
		pHttpContext->GetResponse()->SetStatus(status, "ModSecurity Action");
		pHttpContext->SetRequestHandled();

		hr = E_FAIL;
		goto Finished;
	}

Finished:
	LeaveCriticalSection(&m_csLock);

    if ( FAILED( hr )  )
    {
        return RQ_NOTIFICATION_FINISH_REQUEST;
    }
	return RQ_NOTIFICATION_CONTINUE;
}
Esempio n. 4
0
REQUEST_NOTIFICATION_STATUS
CMyHttpModule::OnSendResponse(
    IN IHttpContext * pHttpContext,
    IN ISendResponseProvider * pResponseProvider
)
{
	REQUEST_STORED_CONTEXT *rsc = NULL;

	rsc = (REQUEST_STORED_CONTEXT *)pHttpContext->GetModuleContextContainer()->GetModuleContext(g_pModuleContext);

	EnterCriticalSection(&m_csLock);

	// here we must check if response body processing is enabled
	//
	if(rsc == NULL || rsc->m_pRequestRec == NULL || rsc->m_pResponseBuffer != NULL || !modsecIsResponseBodyAccessEnabled(rsc->m_pRequestRec))
	{
		goto Exit;
	}

    HRESULT hr = S_OK;
	IHttpResponse *pHttpResponse = NULL;
    HTTP_RESPONSE *pRawHttpResponse = NULL;
    HTTP_BYTE_RANGE *pFileByteRange = NULL;
    HTTP_DATA_CHUNK *pSourceDataChunk = NULL;
    LARGE_INTEGER  lFileSize;
    REQUEST_NOTIFICATION_STATUS ret = RQ_NOTIFICATION_CONTINUE;
	ULONGLONG ulTotalLength = 0;
	DWORD c;
	request_rec *r = rsc->m_pRequestRec;

	pHttpResponse = pHttpContext->GetResponse();
	pRawHttpResponse = pHttpResponse->GetRawHttpResponse();

	// here we must add handling of chunked response
	// apparently IIS 7 calls this handler once per chunk
	// see: http://stackoverflow.com/questions/4385249/how-to-buffer-and-process-chunked-data-before-sending-headers-in-iis7-native-mod

	if(pRawHttpResponse->EntityChunkCount == 0)
		goto Exit;

	// here we must transfer response headers
	//
	USHORT ctcch = 0;
	char *ct = (char *)pHttpResponse->GetHeader(HttpHeaderContentType, &ctcch);
	char *ctz = ZeroTerminate(ct, ctcch, r->pool);

	// assume HTML if content type not set
	// without this output filter would not buffer response and processing would hang
	//
	if(ctz[0] == 0)
		ctz = "text/html";

	r->content_type = ctz;

#define _TRANSHEADER(id,str) if(pRawHttpResponse->Headers.KnownHeaders[id].pRawValue != NULL) \
	{\
		apr_table_setn(r->headers_out, str, \
			ZeroTerminate(pRawHttpResponse->Headers.KnownHeaders[id].pRawValue, pRawHttpResponse->Headers.KnownHeaders[id].RawValueLength, r->pool)); \
	}

    _TRANSHEADER(HttpHeaderCacheControl, "Cache-Control");
    _TRANSHEADER(HttpHeaderConnection, "Connection");
    _TRANSHEADER(HttpHeaderDate, "Date");
    _TRANSHEADER(HttpHeaderKeepAlive, "Keep-Alive");             
    _TRANSHEADER(HttpHeaderPragma, "Pragma");                
    _TRANSHEADER(HttpHeaderTrailer, "Trailer");               
    _TRANSHEADER(HttpHeaderTransferEncoding, "Transfer-Encoding");      
    _TRANSHEADER(HttpHeaderUpgrade, "Upgrade");               
    _TRANSHEADER(HttpHeaderVia, "Via");                   
    _TRANSHEADER(HttpHeaderWarning, "Warning");               
    _TRANSHEADER(HttpHeaderAllow, "Allow");                 
    _TRANSHEADER(HttpHeaderContentLength, "Content-Length");         
    _TRANSHEADER(HttpHeaderContentType, "Content-Type");           
    _TRANSHEADER(HttpHeaderContentEncoding, "Content-Encoding");       
    _TRANSHEADER(HttpHeaderContentLanguage, "Content-Language");       
    _TRANSHEADER(HttpHeaderContentLocation, "Content-Location");       
    _TRANSHEADER(HttpHeaderContentMd5, "Content-Md5");            
    _TRANSHEADER(HttpHeaderContentRange, "Content-Range");          
    _TRANSHEADER(HttpHeaderExpires, "Expires");               
    _TRANSHEADER(HttpHeaderLastModified, "Last-Modified");          
	_TRANSHEADER(HttpHeaderAcceptRanges, "Accept-Ranges");
    _TRANSHEADER(HttpHeaderAge, "Age");                   
    _TRANSHEADER(HttpHeaderEtag, "Etag");                  
    _TRANSHEADER(HttpHeaderLocation, "Location");              
    _TRANSHEADER(HttpHeaderProxyAuthenticate, "Proxy-Authenticate");     
    _TRANSHEADER(HttpHeaderRetryAfter, "Retry-After");            
    _TRANSHEADER(HttpHeaderServer, "Server");                
    _TRANSHEADER(HttpHeaderSetCookie, "Set-Cookie");             
    _TRANSHEADER(HttpHeaderVary, "Vary");                  
    _TRANSHEADER(HttpHeaderWwwAuthenticate, "Www-Authenticate");

#undef	_TRANSHEADER

	for(int i = 0; i < pRawHttpResponse->Headers.UnknownHeaderCount; i++)
	{
		apr_table_setn(r->headers_out, 
			ZeroTerminate(pRawHttpResponse->Headers.pUnknownHeaders[i].pName, pRawHttpResponse->Headers.pUnknownHeaders[i].NameLength, r->pool), 
			ZeroTerminate(pRawHttpResponse->Headers.pUnknownHeaders[i].pRawValue, pRawHttpResponse->Headers.pUnknownHeaders[i].RawValueLength, r->pool));
	}

	r->content_encoding = apr_table_get(r->headers_out, "Content-Encoding");
	//r->content_type = apr_table_get(r->headers_out, "Content-Type");		-- already set above

	const char *lng = apr_table_get(r->headers_out, "Content-Languages");

	if(lng != NULL)
	{
		r->content_languages = apr_array_make(r->pool, 1, sizeof(const char *));

		*(const char **)apr_array_push(r->content_languages) = lng;
	}

	// Disable kernel caching for this response
	// Probably we don't have to do it for ModSecurity

    //pHttpContext->GetResponse()->DisableKernelCache(
    //        IISCacheEvents::HTTPSYS_CACHEABLE::HANDLER_HTTPSYS_UNFRIENDLY);

    for(c = 0; c < pRawHttpResponse->EntityChunkCount; c++ )
    {
        pSourceDataChunk = &pRawHttpResponse->pEntityChunks[ c ];

        switch( pSourceDataChunk->DataChunkType )
        {
            case HttpDataChunkFromMemory:
                ulTotalLength += pSourceDataChunk->FromMemory.BufferLength;
                break;
            case HttpDataChunkFromFileHandle:
                pFileByteRange = &pSourceDataChunk->FromFileHandle.ByteRange;
                //
                // File chunks may contain by ranges with unspecified length 
                // (HTTP_BYTE_RANGE_TO_EOF).  In order to send parts of such a chunk, 
                // its necessary to know when the chunk is finished, and
                // we need to move to the next chunk.
                //              
                if ( pFileByteRange->Length.QuadPart == HTTP_BYTE_RANGE_TO_EOF)
                {
                    if ( GetFileType( pSourceDataChunk->FromFileHandle.FileHandle ) == 
                                    FILE_TYPE_DISK )
                    {
                        if ( !GetFileSizeEx( pSourceDataChunk->FromFileHandle.FileHandle,
                                             &lFileSize ) )
                        {
                            DWORD dwError = GetLastError();
                            hr = HRESULT_FROM_WIN32(dwError);
                            goto Finished;
                        }

                        // put the resolved file length in the chunk, replacing 
                        // HTTP_BYTE_RANGE_TO_EOF
                        pFileByteRange->Length.QuadPart = 
                              lFileSize.QuadPart - pFileByteRange->StartingOffset.QuadPart;
                    }
                    else
                    {
                        hr = HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
                        goto Finished;                        
                    }
                }  

                ulTotalLength += pFileByteRange->Length.QuadPart;
                break;
            default:
                // TBD: consider implementing HttpDataChunkFromFragmentCache, 
                // and HttpDataChunkFromFragmentCacheEx
                hr = HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
                goto Finished;                        
        }
    }

	rsc->m_pResponseBuffer = (char *)apr_palloc(rsc->m_pRequestRec->pool, ulTotalLength);

	ulTotalLength = 0;

    for(c = 0; c < pRawHttpResponse->EntityChunkCount; c++ )
    {
        pSourceDataChunk = &pRawHttpResponse->pEntityChunks[ c ];

        switch( pSourceDataChunk->DataChunkType )
        {
            case HttpDataChunkFromMemory:
				memcpy(rsc->m_pResponseBuffer + ulTotalLength, pSourceDataChunk->FromMemory.pBuffer, pSourceDataChunk->FromMemory.BufferLength);
                ulTotalLength += pSourceDataChunk->FromMemory.BufferLength;
                break;
            case HttpDataChunkFromFileHandle:
                pFileByteRange = &pSourceDataChunk->FromFileHandle.ByteRange;

				if(ReadFileChunk(pSourceDataChunk, rsc->m_pResponseBuffer + ulTotalLength) != S_OK)
				{
			        DWORD dwErr = GetLastError();

					hr = HRESULT_FROM_WIN32(dwErr);
	                goto Finished;
				}

                ulTotalLength += pFileByteRange->Length.QuadPart;
                break;
            default:
                // TBD: consider implementing HttpDataChunkFromFragmentCache, 
                // and HttpDataChunkFromFragmentCacheEx
                hr = HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
                goto Finished;                        
        }
    }

	rsc->m_pResponseLength = ulTotalLength;

	//
    // If there's no content-length set, we need to set it to avoid chunked transfer mode
    // We can only do it if there is it's the only response to be sent.
    //

    DWORD dwFlags = pResponseProvider->GetFlags();

	if (pResponseProvider->GetHeadersBeingSent() && 
         (dwFlags & HTTP_SEND_RESPONSE_FLAG_MORE_DATA) == 0 &&
         pHttpContext->GetResponse()->GetHeader(HttpHeaderContentLength) == NULL)    
    {
        CHAR szLength[21]; //Max length for a 64 bit int is 20

         ZeroMemory(szLength, sizeof(szLength));

         hr = StringCchPrintfA(
                    szLength, 
                    sizeof(szLength) / sizeof(CHAR) - 1, "%d", 
                    ulTotalLength);

        if(FAILED(hr))
        {
            goto Finished;      
        }

         hr = pHttpContext->GetResponse()->SetHeader(
                    HttpHeaderContentLength, 
                    szLength, 
                    (USHORT)strlen(szLength),
                    TRUE);

        if(FAILED(hr))
        {
            goto Finished;      
        }
    }

Finished:

	int status = modsecProcessResponse(rsc->m_pRequestRec);

	// the logic here is temporary, needs clarification
	//
	if(status != 0 && status != -1)
	{
		pHttpContext->GetResponse()->Clear();
		pHttpContext->GetResponse()->SetStatus(status, "ModSecurity Action");
		pHttpContext->SetRequestHandled();

		rsc->FinishRequest();

		LeaveCriticalSection(&m_csLock);
		
		return RQ_NOTIFICATION_FINISH_REQUEST;
	}
Exit:
	// temporary hack, in reality OnSendRequest theoretically could possibly come before OnEndRequest
	//
	if(rsc != NULL)
		rsc->FinishRequest();

	LeaveCriticalSection(&m_csLock);
		
	return RQ_NOTIFICATION_CONTINUE;
}