Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 337 insertions, 0 deletions

diff --git a/embedserv/source/inprocserv/dllentry.cxx b/embedserv/source/inprocserv/dllentry.cxx
new file mode 100644
index 000000000..6c06fae47
--- /dev/null
+++ b/embedserv/source/inprocserv/dllentry.cxx
@@ -0,0 +1,337 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/types.h>
+
+#include <stdio.h>
+#include "inprocembobj.h"
+#include <embservconst.h>
+
+#include <olectl.h> // declarations of DllRegisterServer/DllUnregisterServer
+
+static const GUID* guidList[ SUPPORTED_FACTORIES_NUM ] = {
+    &OID_WriterTextServer,
+    &OID_WriterOASISTextServer,
+    &OID_CalcServer,
+    &OID_CalcOASISServer,
+    &OID_DrawingServer,
+    &OID_DrawingOASISServer,
+    &OID_PresentationServer,
+    &OID_PresentationOASISServer,
+    &OID_MathServer,
+    &OID_MathOASISServer
+};
+
+static HINSTANCE g_hInstance = nullptr;
+static ULONG g_nObj = 0;
+static ULONG g_nLock = 0;
+
+
+namespace {
+    void FillCharFromInt( int nValue, wchar_t* pBuf, int nLen )
+    {
+        int nInd = 0;
+        while( nInd < nLen )
+        {
+            char nSign = ( nValue / ( 1 << ( ( nLen - nInd - 1 ) * 4 ) ) ) % 16;
+            if ( nSign >= 0 && nSign <= 9 )
+                pBuf[nInd] = nSign + L'0';
+            else if (nSign >= 10)
+                pBuf[nInd] = nSign - 10 + L'a';
+
+            nInd++;
+        }
+    }
+
+    int GetStringFromClassID( const GUID& guid, wchar_t* pBuf, int nLen )
+    {
+        // is not allowed to insert
+        if ( nLen < 38 )
+            return 0;
+
+        pBuf[0] = L'{';
+        FillCharFromInt( guid.Data1, &pBuf[1], 8 );
+        pBuf[9] = L'-';
+        FillCharFromInt( guid.Data2, &pBuf[10], 4 );
+        pBuf[14] = L'-';
+        FillCharFromInt( guid.Data3, &pBuf[15], 4 );
+        pBuf[19] = L'-';
+
+        int nInd = 0;
+        for ( nInd = 0; nInd < 2 ; nInd++ )
+            FillCharFromInt( guid.Data4[nInd], &pBuf[20 + 2*nInd], 2 );
+        pBuf[24] = L'-';
+        for ( nInd = 2; nInd < 8 ; nInd++ )
+            FillCharFromInt( guid.Data4[nInd], &pBuf[20 + 1 + 2*nInd], 2 );
+        pBuf[37] = L'}';
+
+        return 38;
+    }
+
+    HRESULT WriteLibraryToRegistry( const wchar_t* pLibrary, DWORD nLen )
+    {
+        HRESULT hRes = E_FAIL;
+        if ( pLibrary && nLen )
+        {
+            HKEY hKey = nullptr;
+
+            hRes = S_OK;
+            for ( int nInd = 0; nInd < SUPPORTED_FACTORIES_NUM; nInd++ )
+            {
+                const wchar_t pSubKeyTemplate[] = L"Software\\Classes\\CLSID\\.....................................\\InprocHandler32";
+                wchar_t pSubKey[SAL_N_ELEMENTS(pSubKeyTemplate)];
+                wcsncpy(pSubKey, pSubKeyTemplate, SAL_N_ELEMENTS(pSubKeyTemplate));
+
+                int nGuidLen = GetStringFromClassID( *guidList[nInd], &pSubKey[23], 38 );
+
+                bool bLocalSuccess = false;
+                if ( nGuidLen == 38 )
+                {
+                    if ( ERROR_SUCCESS == RegOpenKeyW( HKEY_LOCAL_MACHINE, pSubKey, &hKey ) )
+                    {
+                        if ( ERROR_SUCCESS == RegSetValueExW( hKey, L"", 0, REG_SZ, reinterpret_cast<const BYTE*>(pLibrary), nLen*sizeof(wchar_t) ) )
+                            bLocalSuccess = true;
+                    }
+
+                    if ( hKey )
+                    {
+                        RegCloseKey( hKey );
+                        hKey = nullptr;
+                    }
+                }
+
+                if ( !bLocalSuccess )
+                    hRes = E_FAIL;
+            }
+        }
+
+        return hRes;
+    }
+};
+
+
+// InprocEmbedProvider_Impl declaration
+
+
+namespace inprocserv
+{
+
+namespace {
+
+class InprocEmbedProvider_Impl : public IClassFactory, public InprocCountedObject_Impl
+{
+public:
+
+    explicit InprocEmbedProvider_Impl( const GUID& guid );
+    virtual ~InprocEmbedProvider_Impl();
+
+    /* IUnknown methods */
+    STDMETHOD(QueryInterface)(REFIID riid, void ** ppvObj) override;
+    STDMETHOD_(ULONG, AddRef)() override;
+    STDMETHOD_(ULONG, Release)() override;
+
+    /* IClassFactory methods */
+    STDMETHOD(CreateInstance)(IUnknown* punkOuter, REFIID riid, void** ppv) override;
+    STDMETHOD(LockServer)(BOOL fLock) override;
+
+protected:
+
+    ULONG               m_refCount;
+    GUID                m_guid;
+};
+
+}
+
+}; // namespace inprocserv
+
+
+// Entry points
+
+
+extern "C" BOOL WINAPI DllMain( HINSTANCE hInstance, DWORD dwReason, LPVOID /*lpReserved*/ )
+{
+    if (dwReason == DLL_PROCESS_ATTACH)
+    {
+        g_hInstance = hInstance;
+    }
+
+    return TRUE;    // ok
+}
+
+
+STDAPI DllGetClassObject( REFCLSID rclsid, REFIID riid, LPVOID* ppv )
+{
+    for( int nInd = 0; nInd < SUPPORTED_FACTORIES_NUM; nInd++ )
+         if ( *guidList[nInd] == rclsid )
+         {
+            if ( !IsEqualIID( riid, IID_IUnknown ) && !IsEqualIID( riid, IID_IClassFactory ) )
+                return E_NOINTERFACE;
+
+            *ppv = new inprocserv::InprocEmbedProvider_Impl( rclsid );
+            static_cast<LPUNKNOWN>(*ppv)->AddRef();
+            return S_OK;
+         }
+
+    return E_FAIL;
+}
+
+
+STDAPI DllCanUnloadNow()
+{
+    if ( !g_nObj && !g_nLock )
+        return S_OK;
+
+    return S_FALSE;
+}
+
+
+STDAPI DllRegisterServer()
+{
+    HMODULE aCurModule{};
+    GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS
+                           | GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
+                       reinterpret_cast<LPCWSTR>(&DllRegisterServer), &aCurModule);
+    if( aCurModule )
+    {
+        wchar_t aLibPath[1024];
+        DWORD nLen = GetModuleFileNameW( aCurModule, aLibPath, 1019 );
+        if ( nLen && nLen < 1019 )
+        {
+            aLibPath[nLen++] = 0;
+            return WriteLibraryToRegistry( aLibPath, nLen );
+        }
+    }
+
+    return E_FAIL;
+}
+
+
+STDAPI DllUnregisterServer()
+{
+    return WriteLibraryToRegistry( L"ole32.dll", 10 );
+}
+
+
+// End of entry points
+
+
+namespace inprocserv
+{
+
+
+// InprocCountedObject_Impl implementation
+
+
+InprocCountedObject_Impl::InprocCountedObject_Impl()
+{
+    g_nObj++;
+}
+
+
+InprocCountedObject_Impl::~InprocCountedObject_Impl()
+{
+    g_nObj--;
+}
+
+
+// InprocEmbedProvider_Impl implementation
+
+
+InprocEmbedProvider_Impl::InprocEmbedProvider_Impl( const GUID& guid )
+: m_refCount( 0 )
+, m_guid( guid )
+{
+}
+
+
+InprocEmbedProvider_Impl::~InprocEmbedProvider_Impl()
+{
+}
+
+// IUnknown
+
+COM_DECLSPEC_NOTHROW STDMETHODIMP InprocEmbedProvider_Impl::QueryInterface( REFIID riid, void ** ppv )
+{
+    if(IsEqualIID(riid, IID_IUnknown))
+    {
+        AddRef();
+        *ppv = static_cast<IUnknown*>(this);
+        return S_OK;
+    }
+    else if (IsEqualIID(riid, IID_IClassFactory))
+    {
+        AddRef();
+        *ppv = static_cast<IClassFactory*>(this);
+        return S_OK;
+    }
+
+    *ppv = nullptr;
+    return E_NOINTERFACE;
+}
+
+
+COM_DECLSPEC_NOTHROW STDMETHODIMP_(ULONG) InprocEmbedProvider_Impl::AddRef()
+{
+    return ++m_refCount;
+}
+
+
+COM_DECLSPEC_NOTHROW STDMETHODIMP_(ULONG) InprocEmbedProvider_Impl::Release()
+{
+    sal_Int32 nCount = --m_refCount;
+    if ( nCount == 0 )
+        delete this;
+    return nCount;
+}
+
+
+COM_DECLSPEC_NOTHROW STDMETHODIMP InprocEmbedProvider_Impl::CreateInstance(IUnknown* punkOuter,
+                                                                           REFIID riid, void** ppv)
+{
+    // TODO/LATER: should the aggregation be supported?
+    // if ( punkOuter != NULL && riid != IID_IUnknown )
+    //     return E_NOINTERFACE;
+    if ( punkOuter != nullptr )
+        return CLASS_E_NOAGGREGATION;
+
+    InprocEmbedDocument_Impl* pEmbedDocument = new InprocEmbedDocument_Impl( m_guid );
+    pEmbedDocument->AddRef();
+    HRESULT hr = pEmbedDocument->QueryInterface( riid, ppv );
+    pEmbedDocument->Release();
+
+    if ( !SUCCEEDED( hr ) )
+        *ppv = nullptr;
+
+    return hr;
+}
+
+
+COM_DECLSPEC_NOTHROW STDMETHODIMP InprocEmbedProvider_Impl::LockServer( BOOL fLock )
+{
+    if ( fLock )
+        g_nLock++;
+    else
+        g_nLock--;
+
+    return S_OK;
+}
+
+}; // namespace inprocserv
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */