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290 | /* -*- 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/.
*/
#include <registrar.hpp>
#include <wchar.h>
#include <objbase.h>
namespace {
HRESULT RegRead(HKEY hRootKey, const wchar_t* subKey, const wchar_t* valName, wchar_t* valData, size_t cchData)
{
HKEY hKey;
long iRetVal = RegCreateKeyExW(
hRootKey,
subKey,
0,
nullptr,
REG_OPTION_NON_VOLATILE,
KEY_READ,
nullptr,
&hKey,
nullptr);
if (iRetVal != ERROR_SUCCESS)
return HRESULT_FROM_WIN32(iRetVal);
DWORD cbData = cchData * sizeof(valData[0]);
DWORD dwType;
iRetVal = RegQueryValueExW(hKey, valName, nullptr, &dwType, reinterpret_cast<LPBYTE>(valData), &cbData);
RegCloseKey(hKey);
if ((iRetVal == ERROR_SUCCESS) && (dwType != REG_SZ))
{
return E_FAIL;
}
return HRESULT_FROM_WIN32(iRetVal);
}
HRESULT RegWrite(HKEY hRootKey, const wchar_t* subKey, const wchar_t* valName, const wchar_t* valData, HKEY *hKeyResult = nullptr)
{
HKEY hKey;
long iRetVal = RegCreateKeyExW(
hRootKey,
subKey,
0,
nullptr,
REG_OPTION_NON_VOLATILE,
KEY_WRITE,
nullptr,
&hKey,
nullptr);
if (iRetVal != ERROR_SUCCESS)
return HRESULT_FROM_WIN32(iRetVal);
if (valData)
{
DWORD cbData = static_cast<DWORD>(wcslen(valData)*sizeof(valData[0]));
iRetVal = RegSetValueExW(hKey, valName, 0, REG_SZ, reinterpret_cast<const BYTE *>(valData), cbData);
}
if (hKeyResult && (iRetVal == ERROR_SUCCESS))
*hKeyResult = hKey;
else
RegCloseKey(hKey);
return HRESULT_FROM_WIN32(iRetVal);
}
HRESULT RegDel(HKEY hRootKey, const wchar_t* subKey)
{
long iRetVal = RegDeleteKeyW(hRootKey, subKey);
return HRESULT_FROM_WIN32(iRetVal);
}
} // namespace
// see http://stackoverflow.com/questions/284619
// see https://msdn.microsoft.com/en-us/library/ms691424
// see https://msdn.microsoft.com/en-us/library/ms694514
Registrar::Registrar(REFIID riidCLSID)
{
m_ConstructionResult = (StringFromGUID2(riidCLSID, m_sCLSID, nGUIDlen) == 0) ?
E_UNEXPECTED: S_OK;
}
HRESULT Registrar::RegisterObject(REFIID riidTypeLib, const wchar_t* sProgram,
const wchar_t* sComponent, std::initializer_list<int> aVersions,
const wchar_t* Path)
{
if (!wcslen(sComponent) || !wcslen(sProgram))
return E_INVALIDARG;
if (FAILED(m_ConstructionResult))
return m_ConstructionResult;
// HKEY_CLASSES_ROOT
// \CLSID
// \{XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}
// (default) = "MyLibrary MyControl Class"
// \InprocServer32
// (default) = "c:\foo\control.dll"
// ThreadingModel = "Apartment"
// \ProgID
// (default) = "MyLibrary.MyControl"
// \Programmable
// \TypeLib
// (default) = "{YYYYYYYY-YYYY-YYYY-YYYY-YYYYYYYYYYYY}"
wchar_t sBufKey[MAX_PATH];
wchar_t sBufVal[MAX_PATH];
// CLSID
swprintf(sBufKey, MAX_PATH, L"CLSID\\%s", m_sCLSID);
swprintf(sBufVal, MAX_PATH, L"%s %s Class", sProgram, sComponent);
HKEY hKeyCLSID;
HRESULT hr = RegWrite(HKEY_CLASSES_ROOT, sBufKey, L"", sBufVal, &hKeyCLSID);
if (FAILED(hr))
return hr;
{
class HKeyGuard {
public:
HKeyGuard(HKEY aKey) : m_hKey(aKey) {}<--- Class 'HKeyGuard' has a constructor with 1 argument that is not explicit. [+]Class 'HKeyGuard' has a constructor with 1 argument that is not explicit. Such constructors should in general be explicit for type safety reasons. Using the explicit keyword in the constructor means some mistakes when using the class can be avoided. <--- Class 'HKeyGuard' has a constructor with 1 argument that is not explicit. [+]Class 'HKeyGuard' has a constructor with 1 argument that is not explicit. Such constructors should in general be explicit for type safety reasons. Using the explicit keyword in the constructor means some mistakes when using the class can be avoided.
~HKeyGuard() { RegCloseKey(m_hKey); }
private:
HKEY m_hKey;
};
HKeyGuard hKeyCLSIDGuard(hKeyCLSID);
// InprocServer32
HKEY hKeyInprocServer32;
hr = RegWrite(hKeyCLSID, L"InprocServer32", L"", Path, &hKeyInprocServer32);
if (FAILED(hr))
return hr;
{
HKeyGuard hKeyInProcServer32Guard(hKeyInprocServer32);
hr = RegWrite(hKeyInprocServer32, L"", L"ThreadingModel", L"Apartment");
if (FAILED(hr))
return hr;
}
// ProgID
swprintf(sBufVal, MAX_PATH, L"%s.%s", sProgram, sComponent);
hr = RegWrite(hKeyCLSID, L"ProgID", L"", sBufVal);
if (FAILED(hr))
return hr;
// Programmable
hr = RegWrite(hKeyCLSID, L"Programmable", nullptr, nullptr);
if (FAILED(hr))
return hr;
// TypeLib
if (::StringFromGUID2(riidTypeLib, sBufVal, nGUIDlen) == 0)
return E_UNEXPECTED;
hr = RegWrite(hKeyCLSID, L"TypeLib", L"", sBufVal);
if (FAILED(hr))
return hr;
}
// ProgID
return RegisterProgIDs(sProgram, sComponent, aVersions);
}
HRESULT Registrar::UnRegisterObject(const wchar_t* sProgram, const wchar_t* sComponent,
std::initializer_list<int> aVersions)
{
if (FAILED(m_ConstructionResult))
return m_ConstructionResult;
// ProgID
UnRegisterProgIDs(sProgram, sComponent, aVersions);
// CLSID
wchar_t sBuf[MAX_PATH];
swprintf(sBuf, MAX_PATH, L"CLSID\\%s\\InProcServer32", m_sCLSID);
RegDel(HKEY_CLASSES_ROOT, sBuf);
swprintf(sBuf, MAX_PATH, L"CLSID\\%s\\ProgId", m_sCLSID);
RegDel(HKEY_CLASSES_ROOT, sBuf);
swprintf(sBuf, MAX_PATH, L"CLSID\\%s\\Programmable", m_sCLSID);
RegDel(HKEY_CLASSES_ROOT, sBuf);
swprintf(sBuf, MAX_PATH, L"CLSID\\%s\\TypeLib", m_sCLSID);
RegDel(HKEY_CLASSES_ROOT, sBuf);
swprintf(sBuf, MAX_PATH, L"CLSID\\%s", m_sCLSID);
RegDel(HKEY_CLASSES_ROOT, sBuf);
return S_OK;
}
HRESULT Registrar::RegisterProgID(const wchar_t* sProgram, const wchar_t* sComponent, int nVersion, bool bSetDefault)
{
// HKEY_CLASSES_ROOT
// \MyLibrary.MyControl
// (default) = "MyLibrary MyControl Class"
// \CurVer
// (default) = "MyLibrary.MyControl.1"
// \MyLibrary.MyControl.1
// (default) = "MyLibrary MyControl Class"
// \CLSID
// (default) = "{XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}"
if (FAILED(m_ConstructionResult))
return m_ConstructionResult;
wchar_t sBufKey[MAX_PATH];
swprintf(sBufKey, MAX_PATH, L"%s.%s.%d", sProgram, sComponent, nVersion);
wchar_t sBufVal[MAX_PATH];
swprintf(sBufVal, MAX_PATH, L"%s %s Class", sProgram, sComponent);
RegWrite(HKEY_CLASSES_ROOT, sBufKey, L"", sBufVal);
swprintf(sBufKey, MAX_PATH, L"%s.%s.%d\\CLSID", sProgram, sComponent, nVersion);
HRESULT hr = RegWrite(HKEY_CLASSES_ROOT, sBufKey, L"", m_sCLSID);
if (SUCCEEDED(hr) && bSetDefault)
{
swprintf(sBufKey, MAX_PATH, L"%s.%s", sProgram, sComponent);
swprintf(sBufVal, MAX_PATH, L"%s %s Class", sProgram, sComponent);
hr = RegWrite(HKEY_CLASSES_ROOT, sBufKey, L"", sBufVal);<--- hr is assigned<--- hr is assigned
swprintf(sBufKey, MAX_PATH, L"%s.%s\\CurVer", sProgram, sComponent);
swprintf(sBufVal, MAX_PATH, L"%s.%s.%d", sProgram, sComponent, nVersion);
hr = RegWrite(HKEY_CLASSES_ROOT, sBufKey, L"", sBufVal);<--- hr is overwritten<--- hr is overwritten
}
return hr;
}
HRESULT Registrar::RegisterProgIDs(const wchar_t* sProgram, const wchar_t* sComponent,
std::initializer_list<int> aVersions)
{
HRESULT hr = S_OK;
bool bDefaultRegistered = false;
for (int nVersion : aVersions)
{
if (SUCCEEDED(hr))
{
hr = RegisterProgID(sProgram, sComponent, nVersion, !bDefaultRegistered);
bDefaultRegistered = true;
}
}
return hr;
}
HRESULT Registrar::UnRegisterProgID(const wchar_t* sProgram, const wchar_t* sComponent, int nVersion)
{
if (FAILED(m_ConstructionResult))
return m_ConstructionResult;
wchar_t sBuf[MAX_PATH];
swprintf(sBuf, MAX_PATH, L"%s.%s.%d\\CLSID", sProgram, sComponent, nVersion);
wchar_t sCurCLSID[nGUIDlen];
HRESULT hr = RegRead(HKEY_CLASSES_ROOT, sBuf, L"", sCurCLSID, nGUIDlen);
if (FAILED(hr))
return hr;
if (wcsncmp(sCurCLSID, m_sCLSID, nGUIDlen) != 0)
{
// The ProgID points to a different CLSID; most probably it's intercepted
// by a different application, so don't remove it
return S_FALSE;
}
RegDel(HKEY_CLASSES_ROOT, sBuf);
swprintf(sBuf, MAX_PATH, L"%s.%s.%d", sProgram, sComponent, nVersion);
hr = RegDel(HKEY_CLASSES_ROOT, sBuf);
wchar_t sBufKey[MAX_PATH];
swprintf(sBufKey, MAX_PATH, L"%s.%s\\CurVer", sProgram, sComponent);
wchar_t sBufVal[MAX_PATH];
if (SUCCEEDED(RegRead(HKEY_CLASSES_ROOT, sBufKey, L"", sBufVal, MAX_PATH)) && (wcsncmp(sBufVal, sBuf, MAX_PATH) == 0))
{
// Only unreg default if this version is current default
RegDel(HKEY_CLASSES_ROOT, sBufKey);
swprintf(sBuf, MAX_PATH, L"%s.%s", sProgram, sComponent);
HRESULT hr1 = RegDel(HKEY_CLASSES_ROOT, sBuf);
// Always return a failure result if we failed somewhere
if (FAILED(hr1))
hr = hr1;
}
return hr;
}
HRESULT Registrar::UnRegisterProgIDs(const wchar_t* sProgram, const wchar_t* sComponent,
std::initializer_list<int> aVersions)
{
HRESULT hr = S_OK;
// Try all ProgIDs regardless of error, but make sure to return failure result if some failed
for (int nVersion : aVersions)
{
HRESULT hrLast = UnRegisterProgID(sProgram, sComponent, nVersion);
if (SUCCEEDED(hr))
hr = hrLast;
}
return hr;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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