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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"
static INTERNAL_UI_BA_STATE vstate = { };
// internal function declarations
static HRESULT LoadModulePaths(
__in INTERNAL_UI_BA_STATE* pState
);
static HRESULT LoadInternalUIBAConfiguration(
__in INTERNAL_UI_BA_STATE* pState,
__in const BOOTSTRAPPER_CREATE_ARGS* pArgs
);
static HRESULT CreatePrerequisiteBA(
__in INTERNAL_UI_BA_STATE* pState,
__in IBootstrapperEngine* pEngine,
__in const BOOTSTRAPPER_CREATE_ARGS* pArgs,
__inout BOOTSTRAPPER_CREATE_RESULTS* pResults
);
// function definitions
extern "C" BOOL WINAPI DllMain(
__in HINSTANCE hInstance,
__in DWORD dwReason,
__in LPVOID /*pvReserved*/
)
{
switch (dwReason)
{
case DLL_PROCESS_ATTACH:
::DisableThreadLibraryCalls(hInstance);
vstate.hInstance = hInstance;
break;
case DLL_PROCESS_DETACH:
vstate.hInstance = NULL;
break;
}
return TRUE;
}
// Note: This function assumes that COM was already initialized on the thread.
extern "C" HRESULT WINAPI BootstrapperApplicationCreate(
__in const BOOTSTRAPPER_CREATE_ARGS* pArgs,
__inout BOOTSTRAPPER_CREATE_RESULTS* pResults
)
{
HRESULT hr = S_OK;
IBootstrapperEngine* pEngine = NULL;
hr = BalInitializeFromCreateArgs(pArgs, &pEngine);
ExitOnFailure(hr, "Failed to initialize Bal.");
if (!vstate.fInitialized)
{
hr = XmlInitialize();
BalExitOnFailure(hr, "Failed to initialize XML.");
hr = LoadModulePaths(&vstate);
BalExitOnFailure(hr, "Failed to load the module paths.");
hr = LoadInternalUIBAConfiguration(&vstate, pArgs);
BalExitOnFailure(hr, "Failed to get the InternalUIBA configuration.");
vstate.fInitialized = TRUE;
}
if (vstate.prereqData.fAlwaysInstallPrereqs && !vstate.prereqData.fCompleted ||
FAILED(vstate.prereqData.hrFatalError))
{
BalLog(BOOTSTRAPPER_LOG_LEVEL_STANDARD, "Loading prerequisite bootstrapper application.");
hr = CreatePrerequisiteBA(&vstate, pEngine, pArgs, pResults);
BalExitOnFailure(hr, "Failed to create the pre-requisite bootstrapper application.");
}
else
{
hr = CreateBootstrapperApplication(vstate.hInstance, &vstate.prereqData, pEngine, pArgs, pResults, &vstate.pApplication);
BalExitOnFailure(hr, "Failed to create bootstrapper application interface.");
}
LExit:
ReleaseNullObject(pEngine);
return hr;
}
extern "C" void WINAPI BootstrapperApplicationDestroy(
__in const BOOTSTRAPPER_DESTROY_ARGS* pArgs,
__in BOOTSTRAPPER_DESTROY_RESULTS* pResults
)
{
BOOTSTRAPPER_DESTROY_RESULTS childResults = { };
if (vstate.hPrereqModule)
{
PFN_BOOTSTRAPPER_APPLICATION_DESTROY pfnDestroy = reinterpret_cast<PFN_BOOTSTRAPPER_APPLICATION_DESTROY>(::GetProcAddress(vstate.hPrereqModule, "PrereqBootstrapperApplicationDestroy"));
if (pfnDestroy)
{
(*pfnDestroy)(pArgs, &childResults);
}
::FreeLibrary(vstate.hPrereqModule);
vstate.hPrereqModule = NULL;
}
if (vstate.pApplication)
{
DestroyBootstrapperApplication(vstate.pApplication, pArgs, pResults);
ReleaseNullObject(vstate.pApplication);
}
BalUninitialize();
// Need to keep track of state between reloads.
pResults->fDisableUnloading = TRUE;
}
static HRESULT LoadModulePaths(
__in INTERNAL_UI_BA_STATE* pState
)
{
HRESULT hr = S_OK;
LPWSTR sczFullPath = NULL;
hr = PathForCurrentProcess(&sczFullPath, pState->hInstance);
ExitOnFailure(hr, "Failed to get the full host path.");
hr = PathGetDirectory(sczFullPath, &pState->sczAppBase);
ExitOnFailure(hr, "Failed to get the directory of the full process path.");
LExit:
ReleaseStr(sczFullPath);
return hr;
}
static HRESULT LoadInternalUIBAConfiguration(
__in INTERNAL_UI_BA_STATE* pState,
__in const BOOTSTRAPPER_CREATE_ARGS* /*pArgs*/
)
{
HRESULT hr = S_OK;
pState->prereqData.fAlwaysInstallPrereqs = TRUE;
pState->prereqData.fPerformHelp = TRUE;
pState->prereqData.fPerformLayout = TRUE;
return hr;
}
static HRESULT CreatePrerequisiteBA(
__in INTERNAL_UI_BA_STATE* pState,
__in IBootstrapperEngine* pEngine,
__in const BOOTSTRAPPER_CREATE_ARGS* pArgs,
__inout BOOTSTRAPPER_CREATE_RESULTS* pResults
)
{
HRESULT hr = S_OK;
LPWSTR sczPrereqPath = NULL;
HMODULE hModule = NULL;
hr = PathConcat(pState->sczAppBase, L"prereqba.dll", &sczPrereqPath);
BalExitOnFailure(hr, "Failed to get path to pre-requisite BA.");
hModule = ::LoadLibraryExW(sczPrereqPath, NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
ExitOnNullWithLastError(hModule, hr, "Failed to load pre-requisite BA DLL.");
PFN_PREQ_BOOTSTRAPPER_APPLICATION_CREATE pfnCreate = reinterpret_cast<PFN_PREQ_BOOTSTRAPPER_APPLICATION_CREATE>(::GetProcAddress(hModule, "PrereqBootstrapperApplicationCreate"));
ExitOnNullWithLastError(pfnCreate, hr, "Failed to get PrereqBootstrapperApplicationCreate entry-point from: %ls", sczPrereqPath);
hr = pfnCreate(&pState->prereqData, pEngine, pArgs, pResults);
ExitOnFailure(hr, "Failed to create prequisite bootstrapper app.");
pState->hPrereqModule = hModule;
hModule = NULL;
LExit:
if (hModule)
{
::FreeLibrary(hModule);
}
ReleaseStr(sczPrereqPath);
return hr;
}
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