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/* -*- 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 <iomanip>
#include <memory>
#include <string>
#include <sstream>
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <Shlobj.h>
#include <msiquery.h>
namespace
{
template <typename IntType> std::string Num2Hex(IntType n)
{
std::stringstream sMsg;
sMsg << "0x" << std::uppercase << std::setfill('0') << std::setw(sizeof(n) * 2) << std::hex
<< n;
return sMsg.str();
}
template <typename IntType> std::string Num2Dec(IntType n)
{
std::stringstream sMsg;
sMsg << n;
return sMsg.str();
}
std::string Win32ErrorMessage(const char* sFunc, DWORD nWin32Error)
{
std::stringstream sMsg;
sMsg << sFunc << " failed with Win32 error code " << Num2Hex(nWin32Error) << "!";
return sMsg.str();
}
void ThrowHResult(const char* sFunc, HRESULT hr)
{
std::stringstream sMsg;
sMsg << sFunc << " failed (HRESULT = " << Num2Hex(hr) << ")!";
throw std::exception(sMsg.str().c_str());
}
void CheckHResult(const char* sFunc, HRESULT hr)
{
if (FAILED(hr))
ThrowHResult(sFunc, hr);
}
void ThrowWin32Error(const char* sFunc, DWORD nWin32Error)
{
throw std::exception(Win32ErrorMessage(sFunc, nWin32Error).c_str());
}
void ThrowLastError(const char* sFunc) { ThrowWin32Error(sFunc, GetLastError()); }
void CheckWin32Error(const char* sFunc, DWORD nWin32Error)
{
if (nWin32Error != ERROR_SUCCESS)
ThrowWin32Error(sFunc, nWin32Error);
}
std::wstring GetKnownFolder(const KNOWNFOLDERID& rfid)
{
PWSTR sPath = nullptr;
HRESULT hr = SHGetKnownFolderPath(rfid, KF_FLAG_DEFAULT, nullptr, &sPath);
CheckHResult("SHGetKnownFolderPath", hr);
std::wstring sResult(sPath);
CoTaskMemFree(sPath);
return sResult;
}
void WriteLogElem(MSIHANDLE hInst, MSIHANDLE hRecord, std::ostringstream& sTmpl, UINT)
{
MsiRecordSetStringA(hRecord, 0, sTmpl.str().c_str());
MsiProcessMessage(hInst, INSTALLMESSAGE_INFO, hRecord);
}
void RecSetString(MSIHANDLE hRec, UINT nField, LPCSTR sVal)
{
MsiRecordSetStringA(hRec, nField, sVal);
}
void RecSetString(MSIHANDLE hRec, UINT nField, LPCWSTR sVal)
{
MsiRecordSetStringW(hRec, nField, sVal);
}
template <class Ch, class... SOther>
void WriteLogElem(MSIHANDLE hInst, MSIHANDLE hRec, std::ostringstream& sTmpl, UINT nField,
const Ch* elem, const SOther&... others)
{
sTmpl << " [" << nField << "]";
RecSetString(hRec, nField, elem);
WriteLogElem(hInst, hRec, sTmpl, nField + 1, others...);
}
template <class S1, class... SOther>
void WriteLogElem(MSIHANDLE hInst, MSIHANDLE hRec, std::ostringstream& sTmpl, UINT nField,
const S1& elem, const SOther&... others)
{
WriteLogElem(hInst, hRec, sTmpl, nField, elem.c_str(), others...);
}
static std::string sLogPrefix;
template <class... StrType> void WriteLog(MSIHANDLE hInst, const StrType&... elements)
{
PMSIHANDLE hRec = MsiCreateRecord(sizeof...(elements));
if (!hRec)
return;
std::ostringstream sTemplate;
sTemplate << sLogPrefix;
WriteLogElem(hInst, hRec, sTemplate, 1, elements...);
}
std::wstring MsiGetPropertyW(MSIHANDLE hInst, LPCWSTR szName)
{
std::wstring sResult;
DWORD nSz = 0;
UINT nRet = ::MsiGetPropertyW(hInst, szName, const_cast<wchar_t*>(L""), &nSz);
if (nRet == ERROR_MORE_DATA)
{
++nSz;
auto buf = std::make_unique<wchar_t[]>(nSz);
CheckWin32Error("MsiGetPropertyW", ::MsiGetPropertyW(hInst, szName, buf.get(), &nSz));
sResult = buf.get();
WriteLog(hInst, "Property", szName, "=", sResult);
}
else
CheckWin32Error("MsiGetPropertyW", nRet);
return sResult;
}
typedef std::unique_ptr<void, decltype(&CloseHandle)> CloseHandleGuard;
CloseHandleGuard Guard(HANDLE h) { return CloseHandleGuard(h, CloseHandle); }
void RegDLL(MSIHANDLE hInst, const std::wstring& sArgs, bool bUnreg)
{
static std::wstring sRegSvr32 = GetKnownFolder(FOLDERID_System) + L"\\regsvr32.exe";
try
{
std::wstring sCmd = L"\"" + sRegSvr32 + L"\" /s ";
if (bUnreg)
sCmd += L"/u ";
sCmd += sArgs;
WriteLog(hInst, "Prepared regsvr32 command:", sCmd);
STARTUPINFOW si{};
si.cb = sizeof(si);
PROCESS_INFORMATION pi{};
if (!CreateProcessW(sRegSvr32.c_str(), const_cast<LPWSTR>(sCmd.c_str()), nullptr, nullptr,
FALSE, CREATE_NO_WINDOW, nullptr, nullptr, &si, &pi))
ThrowLastError("CreateProcessW");
auto aCloseProcHandleGuard(Guard(pi.hProcess));
WriteLog(hInst, "CreateProcessW succeeded");
DWORD nWaitResult = WaitForSingleObject(pi.hProcess, INFINITE);
if (nWaitResult != WAIT_OBJECT_0)
ThrowWin32Error("WaitForSingleObject", nWaitResult);
DWORD nExitCode = 0;
if (!GetExitCodeProcess(pi.hProcess, &nExitCode))
ThrowLastError("GetExitCodeProcess");
WriteLog(hInst, "regsvr32 returned:", Num2Dec(nExitCode));
}
catch (std::exception& e)
{
WriteLog(hInst, e.what());
}
}
void ProcessCustomActionData(MSIHANDLE hInst, bool bUnreg)
{
WriteLog(hInst, "Checking value of CustomActionData");
std::wstring sCustomActionData = MsiGetPropertyW(hInst, L"CustomActionData");
WriteLog(hInst, "Got CustomActionData value:", sCustomActionData);
std::wstringstream ss(sCustomActionData);
std::wstring sToken;
while (std::getline(ss, sToken, L'|'))
{
if (!sToken.empty())
{
RegDLL(hInst, sToken, bUnreg);
}
}
}
} // namespace
// Deferred action "reg_dlls" that must be run from system account. Receives a list of regsvr32
// arguments: DLLs which need registering, and possibly /i argument with its parameter.
extern "C" __declspec(dllexport) UINT __stdcall RegDLLs(MSIHANDLE hInstall)
{
sLogPrefix = "RegDLLs:";
WriteLog(hInstall, "started");
ProcessCustomActionData(hInstall, false);
return ERROR_SUCCESS;
}
// Deferred action "unreg_dlls" that must be run from system account. Receives a list of regsvr32
// arguments: DLLs which need registering, and possibly /i argument with its parameter.
extern "C" __declspec(dllexport) UINT __stdcall UnregDLLs(MSIHANDLE hInstall)
{
sLogPrefix = "UnregDLLs:";
WriteLog(hInstall, "started");
ProcessCustomActionData(hInstall, true);
return ERROR_SUCCESS;
}
// Immediate action "prep_reg_unreg_dlls". Checks states of the features to prepare custom action data
// for reg_dlls and unreg_dlls deferred actions.
extern "C" __declspec(dllexport) UINT __stdcall PrepRegUnregDLLs(MSIHANDLE hInstall)
{
sLogPrefix = "PrepRegUnregDLLs:";
WriteLog(hInstall, "started");
try
{
INSTALLSTATE current_state_SubstMSO;
INSTALLSTATE future_state_SubstMSO;
CheckWin32Error("MsiGetFeatureStateW",
MsiGetFeatureStateW(hInstall, L"gm_SharePointSupport_SubstMSO",
¤t_state_SubstMSO, &future_state_SubstMSO));
WriteLog(hInstall, "gm_SharePointSupport_SubstMSO state:", //
"current", std::to_string(current_state_SubstMSO), //
"future", std::to_string(future_state_SubstMSO)); //
INSTALLSTATE current_state_Main;
INSTALLSTATE future_state_Main;
CheckWin32Error("MsiGetFeatureStateW",
MsiGetFeatureStateW(hInstall, L"gm_o_SharePointSupport",
¤t_state_Main, &future_state_Main));
WriteLog(hInstall, "gm_o_SharePointSupport state:", //
"current", std::to_string(current_state_Main), //
"future", std::to_string(future_state_Main)); //
const bool bUnregSubstMSO = current_state_SubstMSO == INSTALLSTATE_LOCAL
&& future_state_SubstMSO == INSTALLSTATE_ABSENT;
const bool bUnregMain
= current_state_Main == INSTALLSTATE_LOCAL && future_state_Main == INSTALLSTATE_ABSENT;
const bool bRegSubstMSO = current_state_SubstMSO == INSTALLSTATE_ABSENT
&& future_state_SubstMSO == INSTALLSTATE_LOCAL;
// basic registration is needed when either:
// 1. gm_o_SharePointSupport is installed;
// 2. gm_SharePointSupport_SubstMSO is uninstalled (and unregisters everything), but
// gm_o_SharePointSupport is not, so needs to be re-registered
const bool bRegMain
= (current_state_Main == INSTALLSTATE_ABSENT && future_state_Main == INSTALLSTATE_LOCAL)
|| (bUnregSubstMSO && !bUnregMain);
std::wstring sUnregStr;
if (bUnregSubstMSO)
{
sUnregStr = L"/i:Substitute_OWSSUPP \"[#spsupp_x86.dll]\"|"
L"/i:Substitute_OWSSUPP \"[#spsupp_x64.dll]\"";
}
else if (bUnregMain)
{
sUnregStr = L"\"[#spsupp_x86.dll]\"|\"[#spsupp_x64.dll]\"";
}
std::wstring sRegStr;
if (bRegSubstMSO)
{
sRegStr = L"/i:Substitute_OWSSUPP \"[#spsupp_x86.dll]\"|"
L"/i:Substitute_OWSSUPP \"[#spsupp_x64.dll]\"";
}
else if (bRegMain)
{
sRegStr = L"\"[#spsupp_x86.dll]\"|\"[#spsupp_x64.dll]\"";
}
auto SetFormattedPropW = [&](LPCWSTR sProp, const std::wstring& sVal) {
PMSIHANDLE hRec = MsiCreateRecord(0);
if (!hRec)
throw std::exception("MsiCreateRecord failed!");
MsiRecordSetStringW(hRec, 0, sVal.c_str());
DWORD nSz = 0;
if (MsiFormatRecordW(hInstall, hRec, const_cast<wchar_t*>(L""), &nSz)
== ERROR_MORE_DATA)
{
++nSz;
auto buf = std::make_unique<wchar_t[]>(nSz);
CheckWin32Error("MsiFormatRecordW",
MsiFormatRecordW(hInstall, hRec, buf.get(), &nSz));
CheckWin32Error("MsiSetPropertyW", MsiSetPropertyW(hInstall, sProp, buf.get()));
}
};
if (!sRegStr.empty())
SetFormattedPropW(L"reg_dlls", sRegStr);
if (!sUnregStr.empty())
SetFormattedPropW(L"unreg_dlls", sUnregStr);
}
catch (std::exception& e)
{
WriteLog(hInstall, e.what());
}
return ERROR_SUCCESS;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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