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// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
#include "precomp.h"
// globals
HMODULE g_hInstCADLL;
// statics
static BOOL s_fInitialized;
static MSIHANDLE s_hInstall;
static MSIHANDLE s_hDatabase;
static char s_szCustomActionLogName[32];
static UINT s_iRetVal;
static void CALLBACK WcaTraceError(
__in_z LPCSTR szFile,
__in int iLine,
__in REPORT_LEVEL rl,
__in UINT source,
__in HRESULT hrError,
__in_z __format_string LPCSTR szFormat,
__in va_list args
);
/********************************************************************
WcaGlobalInitialize() - initializes the Wca library, should be
called once per custom action Dll during
DllMain on DLL_PROCESS_ATTACH
********************************************************************/
extern "C" void WIXAPI WcaGlobalInitialize(
__in HINSTANCE hInst
)
{
g_hInstCADLL = hInst;
DutilInitialize(&WcaTraceError);
MemInitialize();
AssertSetModule(g_hInstCADLL);
AssertSetDisplayFunction(WcaDisplayAssert);
}
/********************************************************************
WcaGlobalFinalize() - finalizes the Wca library, should be the
called once per custom action Dll during
DllMain on DLL_PROCESS_DETACH
********************************************************************/
extern "C" void WIXAPI WcaGlobalFinalize()
{
#ifdef DEBUG
if (WcaIsInitialized())
{
CHAR szBuf[2048];
StringCchPrintfA(szBuf, countof(szBuf), "CustomAction %s called WcaInitialize() but not WcaFinalize()", WcaGetLogName());
AssertSz(FALSE, szBuf);
}
#endif
MemUninitialize();
DutilUninitialize();
g_hInstCADLL = NULL;
}
/********************************************************************
WcaInitialize() - initializes the Wca framework, should be the first
thing called by all CustomActions
********************************************************************/
extern "C" HRESULT WIXAPI WcaInitialize(
__in MSIHANDLE hInstall,
__in_z PCSTR szCustomActionLogName
)
{
WCHAR wzCAFileName[MAX_PATH] = {0};
DWORD dwMajorVersion = 0;
DWORD dwMinorVersion = 0;
// these statics should be called once per CustomAction invocation.
// Darwin does doesn't preserve DLL state across CustomAction calls so
// these should always be initialized to NULL. If that behavior changes
// we would need to do a careful review of all of our module/global data.
AssertSz(!s_fInitialized, "WcaInitialize() should only be called once per CustomAction");
Assert(NULL == s_hInstall);
Assert(NULL == s_hDatabase);
Assert(0 == *s_szCustomActionLogName);
HRESULT hr = S_OK;
s_fInitialized = TRUE;
s_iRetVal = ERROR_SUCCESS; // assume all will go well
s_hInstall = hInstall;
s_hDatabase = ::MsiGetActiveDatabase(s_hInstall); // may return null if deferred CustomAction
hr = ::StringCchCopy(s_szCustomActionLogName, countof(s_szCustomActionLogName), szCustomActionLogName);
ExitOnFailure(hr, "Failed to copy CustomAction log name: %s", szCustomActionLogName);
// If we got the database handle IE: immediate CA
if (s_hDatabase)
{
hr = SetVerboseLoggingAtom(IsVerboseLogging());
ExitOnFailure(hr, "Failed to set verbose logging global atom");
}
if (!::GetModuleFileNameW(g_hInstCADLL, wzCAFileName, countof(wzCAFileName)))
{
ExitWithLastError(hr, "Failed to get module filename");
}
FileVersion(wzCAFileName, &dwMajorVersion, &dwMinorVersion); // Ignore failure, just log 0.0.0.0
WcaLog(LOGMSG_VERBOSE, "Entering %s in %ls, version %u.%u.%u.%u", szCustomActionLogName, wzCAFileName, (DWORD)HIWORD(dwMajorVersion), (DWORD)LOWORD(dwMajorVersion), (DWORD)HIWORD(dwMinorVersion), (DWORD)LOWORD(dwMinorVersion));
Assert(s_hInstall);
LExit:
if (FAILED(hr))
{
if (s_hDatabase)
{
::MsiCloseHandle(s_hDatabase);
s_hDatabase = NULL;
}
s_hInstall = NULL;
s_fInitialized = FALSE;
}
return hr;
}
/********************************************************************
WcaFinalize() - cleans up after the Wca framework, should be the last
thing called by all CustomActions
********************************************************************/
extern "C" UINT WIXAPI WcaFinalize(
__in UINT iReturnValue
)
{
AssertSz(!WcaIsWow64Initialized(), "WcaFinalizeWow64() should be called before calling WcaFinalize()");
// clean up after our initialization
if (s_hDatabase)
{
::MsiCloseHandle(s_hDatabase);
s_hDatabase = NULL;
}
s_hInstall = NULL;
s_fInitialized = FALSE;
// if no error occurred during the processing of the CusotmAction return the passed in return value
// otherwise return the previous failure
return (ERROR_SUCCESS == s_iRetVal) ? iReturnValue : s_iRetVal;
}
/********************************************************************
WcaIsInitialized() - determines if WcaInitialize() has been called
********************************************************************/
extern "C" BOOL WIXAPI WcaIsInitialized()
{
return s_fInitialized;
}
/********************************************************************
WcaGetInstallHandle() - gets the handle to the active install session
********************************************************************/
extern "C" MSIHANDLE WIXAPI WcaGetInstallHandle()
{
AssertSz(s_hInstall, "WcaInitialize() should be called before attempting to access the install handle.");
return s_hInstall;
}
/********************************************************************
WcaGetDatabaseHandle() - gets the handle to the active database
NOTE: this function can only be used in immediate CustomActions.
Deferred CustomActions do not have access to the active
database.
********************************************************************/
extern "C" MSIHANDLE WIXAPI WcaGetDatabaseHandle()
{
AssertSz(s_hDatabase, "WcaInitialize() should be called before attempting to access the install handle. Also note that deferred CustomActions do not have access to the active database.");
return s_hDatabase;
}
/********************************************************************
WcaGetLogName() - gets the name of the CustomAction used in logging
********************************************************************/
extern "C" const char* WIXAPI WcaGetLogName()
{
return s_szCustomActionLogName;
}
/********************************************************************
WcaSetReturnValue() - sets the value to return from the CustomAction
********************************************************************/
extern "C" void WIXAPI WcaSetReturnValue(
__in UINT iReturnValue
)
{
s_iRetVal = iReturnValue;
}
/********************************************************************
WcaCancelDetected() - determines if the user has canceled yet
NOTE: returns true when WcaSetReturnValue() is set to ERROR_INSTALL_USEREXIT
********************************************************************/
extern "C" BOOL WIXAPI WcaCancelDetected()
{
return ERROR_INSTALL_USEREXIT == s_iRetVal;
}
static void CALLBACK WcaTraceError(
__in_z LPCSTR /*szFile*/,
__in int /*iLine*/,
__in REPORT_LEVEL /*rl*/,
__in UINT source,
__in HRESULT hrError,
__in_z __format_string LPCSTR szFormat,
__in va_list args
)
{
if (DUTIL_SOURCE_DEFAULT == source)
{
WcaLogErrorArgs(hrError, szFormat, args);
}
}
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