Subj : UNANSWERED: Re: ISAPI newbie question
To   : borland.public.cpp.borlandcpp
From : "Tim Mackey" <tim@scootasp.net>
Date : Thu Jul 17 2003 06:30 pm

hi folks, am i barking up the wrong tree here?
i've tried the delphi ISAPI newsgroup with no luck, and i'd like to do it in
borland C++... if any of you guys can help that would be great. or advice
for where else to look...

ta
tim


"tim mackey" <tim@scootasp.net> wrote in message
news:3f151ea3$1@newsgroups.borland.com...
>
> hi folks,
> this is my first post here.
>
> i'm trying to do a simple ISAPI url rewriter using borland C++. i don't
have delphi or Visual Studio 6.
>
> the main idea is that i want to redirect all urls to /content.aspx, except
the content.aspx page itself of course. i want to insert a http header
called 'ORIGINAL_URL' which contains the original url. i found code from
msdn which i have modified and pasted below, but i'm having trouble locating
header files for it. code below.
>
> if there's any compile switches i should know about please let me know. i
did manage to find the -WD switch for creating a DLL.
>
> any help is greatly appreciated!
> thanks
> tim mackey.
>
>
> // URLRewrite.cpp - Implementation file for ISAPI URLRewrite Filter
>
> #include "stdafx.h"
> #include "URLRewrite.h"
>
>
> // The one and only CWinApp object
> // NOTE: You may remove this object if you alter your project to no
> // longer use MFC in a DLL.
>
> CWinApp theApp;
>
>
>
>
> // The one and only CURLRewriteFilter object
>
> CURLRewriteFilter theFilter;
>
>
>
> // CURLRewriteFilter implementation
>
> CURLRewriteFilter::CURLRewriteFilter()
> {
> }
>
> CURLRewriteFilter::~CURLRewriteFilter()
> {
> }
>
> BOOL CURLRewriteFilter::GetFilterVersion(PHTTP_FILTER_VERSION pVer)
> {
>  // Call default implementation for initialization
>  CHttpFilter::GetFilterVersion(pVer);
>
>  // Clear the flags set by base class
>  pVer->dwFlags &= ~SF_NOTIFY_ORDER_MASK;
>
>  // Set the flags we are interested in
>  pVer->dwFlags |= SF_NOTIFY_SECURE_PORT | SF_NOTIFY_NONSECURE_PORT |
SF_NOTIFY_PREPROC_HEADERS;
>
>  // Set Priority
>  pVer->dwFlags |= SF_NOTIFY_ORDER_LOW;
>
>  // Load description string
>  TCHAR sz[SF_MAX_FILTER_DESC_LEN+1];
>  ISAPIVERIFY(::LoadString(AfxGetResourceHandle(),
>    IDS_FILTER, sz, SF_MAX_FILTER_DESC_LEN));
>  _tcscpy(pVer->lpszFilterDesc, sz);
>  return TRUE;
> }
>
> const DWORD cnURLSize = 4096;
> DWORD CURLRewriteFilter::OnPreprocHeaders(CHttpFilterContext* pfc,
PHTTP_FILTER_PREPROC_HEADERS pHeaders)
> {
>  // get the URL using the special "url" pseudoheader
>  char lpszOriginalURL[cnURLSize], lpszNewUrl[cnURLSize];
>  DWORD nURLSize = cnURLSize;
>
>  if ((pHeaders->GetHeader(pfc->m_pFC, "url", lpszOriginalURL, &nURLSize)))
{
>
>          // don't apply the filter to content.aspx
>          if (strnicmp(lpszOriginalURL, "content.aspx",
sizeof("content.aspx") - 1))
>              return CHttpFilter::OnPreprocHeaders(pfc, pHeaders);
>
>   pHeaders->SetHeader(pfc->m_pFC, "ORIGINAL_URL:",
(char*)lpszOriginalURL);
>   pHeaders->SetHeader(pfc->m_pFC, "url", "/content.aspx");
>  }
>  return CHttpFilter::OnPreprocHeaders(pfc, pHeaders);
> }
>
>
> // If your extension will not use MFC, you'll need this code to make
> // sure the extension objects can find the resource handle for the
> // module.  If you convert your extension to not be dependent on MFC,
> // remove the comments around the following AfxGetResourceHandle()
> // and DllMain() functions, as well as the g_hInstance global.
>
> /*
> static HINSTANCE g_hInstance;
>
> HINSTANCE AFXISAPI AfxGetResourceHandle()
> {
>  return g_hInstance;
> }
>
> BOOL WINAPI DllMain(HINSTANCE hInst, ULONG ulReason,
>      LPVOID lpReserved)
> {
>  if (ulReason == DLL_PROCESS_ATTACH)
>  {
>   g_hInstance = hInst;
>  }
>
>  return TRUE;
> }
>
> */
>
>
> -------------------------------
> Tim Mackey
> www.ScootASP.net // .NET web hosting
> tim@scootasp.net
> -------------------------------

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