INTEGRATION: CWS desktintgr03 (1.1.2); FILE ADDED

2004/10/21 13:52:32 tra 1.1.2.1: #i34294# we need to install a proxy library in order to prevent failures to load the filter library

1 files changed, 183 insertions, 0 deletions

diff --git a/shell/source/win32/shlxthandler/ooofilt/proxy/ooofiltproxy.cxx b/shell/source/win32/shlxthandler/ooofilt/proxy/ooofiltproxy.cxx
new file mode 100644
index 000000000000..d29932038684
--- /dev/null
+++ b/shell/source/win32/shlxthandler/ooofilt/proxy/ooofiltproxy.cxx
@@ -0,0 +1,183 @@
+/*************************************************************************
+ *
+ *  $RCSfile: ooofiltproxy.cxx,v $
+ *
+ *  $Revision: 1.2 $
+ *
+ *  last change: $Author: pjunck $ $Date: 2004-11-03 08:01:14 $
+ *
+ *  The Contents of this file are made available subject to the terms of
+ *  either of the following licenses
+ *
+ *         - GNU Lesser General Public License Version 2.1
+ *         - Sun Industry Standards Source License Version 1.1
+ *
+ *  Sun Microsystems Inc., October, 2000
+ *
+ *  GNU Lesser General Public License Version 2.1
+ *  =============================================
+ *  Copyright 2000 by Sun Microsystems, Inc.
+ *  901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License version 2.1, as published by the Free Software Foundation.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ *  MA  02111-1307  USA
+ *
+ *
+ *  Sun Industry Standards Source License Version 1.1
+ *  =================================================
+ *  The contents of this file are subject to the Sun Industry Standards
+ *  Source License Version 1.1 (the "License"); You may not use this file
+ *  except in compliance with the License. You may obtain a copy of the
+ *  License at http://www.openoffice.org/license.html.
+ *
+ *  Software provided under this License is provided on an "AS IS" basis,
+ *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+ *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
+ *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
+ *  See the License for the specific provisions governing your rights and
+ *  obligations concerning the Software.
+ *
+ *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
+ *
+ *  Copyright: 2000 by Sun Microsystems, Inc.
+ *
+ *  All Rights Reserved.
+ *
+ *  Contributor(s): _______________________________________
+ *
+ *
+ ************************************************************************/
+
+#include <windows.h>
+#include <tchar.h>
+
+/*
+    The indexing filter library ooofilt.dll is linked against a couple
+    of libaries (e.g. stlport, uwinapi, ...) which are not standard on
+    a windows system. Unfortunately the library will be loaded by the
+    indexing service via LoadLibrary so that the libraries ooofilt.dll
+    depends on need to be in one of the standard search directories or
+    the <office installation> directory need to be added to the PATH
+    environment variable. In order to prevent failures while loading
+    the ooofilt.dll we're installing and registering this proxy library
+    which will load ooofilt.dll using LoadLibraryEx with the flag
+    LOAD_WITH_ALTERED_SEARCH_PATH (see MSDN for details). This approach
+    ensures that all libraries ooofilt.dll depends on will be found.
+*/
+
+typedef HRESULT (__stdcall * Forward_DllGetClassObject_t)(REFCLSID cid, REFIID iid, void** ppvObj);
+typedef HRESULT (__stdcall * Forward_DllCanUnloadNow_t)();
+typedef HRESULT (__stdcall * Forward_DllRegisterServer_t)();
+typedef HRESULT (__stdcall * Forward_DllUnregisterServer_t)();
+
+Forward_DllGetClassObject_t Forward_DllGetClassObject = NULL;
+Forward_DllCanUnloadNow_t Forward_DllCanUnloadNow = NULL;
+Forward_DllRegisterServer_t Forward_DllRegisterServer = NULL;
+Forward_DllUnregisterServer_t Forward_DllUnregisterServer = NULL;
+
+HMODULE hOoofilt = NULL;
+HMODULE hThisLibrary = NULL;
+
+/* Truncates the file name from an absolute path but
+   leaves the final '\' */
+void PathTruncateFileName(TCHAR* path)
+{
+    TCHAR* p = path + lstrlen(path);
+    while (*p != _T('\\')) p--;
+    p++;
+    *p = 0;
+}
+
+void Init()
+{
+    if (Forward_DllGetClassObject == NULL)
+    {
+        TCHAR buff[MAX_PATH];
+        GetModuleFileName(hThisLibrary, buff, (sizeof(buff)/sizeof(TCHAR)));
+        PathTruncateFileName(buff);
+        lstrcat(buff, TEXT("ooofilt.dll"));
+
+        hOoofilt = LoadLibraryEx(buff, NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
+
+        if (hOoofilt)
+        {
+            Forward_DllGetClassObject = reinterpret_cast<Forward_DllGetClassObject_t>(
+                GetProcAddress(hOoofilt, "DllGetClassObject"));
+            Forward_DllCanUnloadNow = reinterpret_cast<Forward_DllCanUnloadNow_t>(
+                GetProcAddress(hOoofilt, "DllCanUnloadNow"));
+            Forward_DllRegisterServer = reinterpret_cast<Forward_DllRegisterServer_t>(
+                GetProcAddress(hOoofilt, "DllRegisterServer"));
+            Forward_DllUnregisterServer = reinterpret_cast<Forward_DllUnregisterServer_t>(
+                GetProcAddress(hOoofilt, "DllUnregisterServer"));
+        }
+    }
+}
+
+extern "C" BOOL WINAPI DllMain(HMODULE hInstance, DWORD fdwReason, LPVOID /*lpvReserved*/)
+{
+    switch (fdwReason)
+    {
+    case DLL_PROCESS_ATTACH:
+        DisableThreadLibraryCalls( hInstance );
+        hThisLibrary = hInstance;
+        break;
+    case DLL_PROCESS_DETACH:
+        if (hOoofilt)
+            FreeLibrary(hOoofilt);
+        break;
+    default:
+        break;
+    }
+    return TRUE;
+}
+
+extern "C" HRESULT __stdcall DllGetClassObject(REFCLSID cid, REFIID iid, void** ppvObj)
+{
+    Init();
+
+    if (Forward_DllGetClassObject)
+        return Forward_DllGetClassObject(cid, iid, ppvObj);
+    else
+        return E_FAIL;
+}
+
+extern "C" HRESULT __stdcall DllCanUnloadNow()
+{
+    Init();
+
+    if (Forward_DllCanUnloadNow)
+        return Forward_DllCanUnloadNow();
+    else
+        return E_FAIL;
+}
+
+extern "C" HRESULT __stdcall DllRegisterServer()
+{
+    Init();
+
+    if (Forward_DllRegisterServer)
+        return Forward_DllRegisterServer();
+    else
+        return E_FAIL;
+}
+
+extern "C" HRESULT __stdcall DllUnregisterServer()
+{
+    Init();
+
+    if (Forward_DllUnregisterServer)
+        return Forward_DllUnregisterServer();
+    else
+        return E_FAIL;
+}