ImportsHandling.cpp
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ImportsHandling.cpp
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	#include "ImportsHandling.h"

	#include "Thunks.h"
	#include "definitions.h"

	#include "resource.h"

	//#define DEBUG_COMMENTS

	ImportsHandling::ImportsHandling(CTreeViewCtrl& TreeImports) : TreeImports(TreeImports)
	{
	hIconCheck.LoadIcon(IDI_ICON_CHECK);
	hIconWarning.LoadIcon(IDI_ICON_WARNING);
	hIconError.LoadIcon(IDI_ICON_ERROR);

	TreeIcons.Create(16, 16, ILC_COLOR32, 3, 1);
	TreeIcons.AddIcon(hIconCheck);
	TreeIcons.AddIcon(hIconWarning);
	TreeIcons.AddIcon(hIconError);
	}

	ImportsHandling::~ImportsHandling()
	{
	TreeIcons.Destroy();
	}

	bool ImportModuleThunk::isValid() const
	{
	std::map<DWORD_PTR, ImportThunk>::const_iterator iterator = thunkList.begin();
	while (iterator != thunkList.end())
	{
	if (iterator->second.valid == false)
	{
	return false;
	}
	iterator++;
	}

	return true;
	}

	DWORD_PTR ImportModuleThunk::getFirstThunk() const
	{
	if (thunkList.size() > 0)
	{
	const std::map<DWORD_PTR, ImportThunk>::const_iterator iterator = thunkList.begin();
	return iterator->first;
	}
	else
	{
	return 0;
	}
	}

	/bool ImportsHandling::addModule(WCHAR moduleName, DWORD_PTR firstThunk)
	{
	ImportModuleThunk module;

	module.firstThunk = firstThunk;
	wcscpy_s(module.moduleName, MAX_PATH, moduleName);

	moduleList.insert(std::pair<DWORD_PTR,ImportModuleThunk>(firstThunk,module));

	return true;
	}*/

	/bool ImportsHandling::addFunction(WCHAR moduleName, char * name, DWORD_PTR va, DWORD_PTR rva, DWORD_PTR ordinal, bool valid, bool suspect)
	{
	ImportThunk import;
	ImportModuleThunk * module = 0;
	std::map<DWORD_PTR, ImportModuleThunk>::iterator iterator1;

	if (moduleList.size() > 1)
	{
	iterator1 = moduleList.begin();
	while (iterator1 != moduleList.end())
	{
	if (rva >= iterator1->second.firstThunk)
	{
	iterator1++;
	if (iterator1 == moduleList.end())
	{
	iterator1--;
	module = &(iterator1->second);
	break;
	}
	else if (rva < iterator1->second.firstThunk)
	{
	iterator1--;
	module = &(iterator1->second);
	break;
	}
	}
	}
	}
	else
	{
	iterator1 = moduleList.begin();
	module = &(iterator1->second);
	}

	if (!module)
	{
	Logger::debugLog(TEXT("ImportsHandling::addFunction module not found rva ")TEXT(PRINTF_DWORD_PTR_FULL)TEXT(""),rva);
	return false;
	}

	//TODO
	import.suspect = true;
	import.valid = false;
	import.va = va;
	import.rva = rva;
	import.ordinal = ordinal;

	wcscpy_s(import.moduleName, MAX_PATH, moduleName);
	strcpy_s(import.name, MAX_PATH, name);

	module->thunkList.insert(std::pair<DWORD_PTR,ImportThunk>(import.rva, import));

	return true;
	}*/

	void ImportsHandling::displayAllImports()
	{
	std::map<DWORD_PTR, ImportModuleThunk>::iterator it_module;
	std::map<DWORD_PTR, ImportThunk>::iterator it_thunk;
	ImportModuleThunk * moduleThunk;
	ImportThunk * importThunk;
	CTreeItem module;
	CTreeItem apiFunction;

	TreeImports.DeleteAllItems();
	TreeImports.SetImageList(TreeIcons);

	it_module = moduleList.begin();

	while (it_module != moduleList.end())
	{
	moduleThunk = &(it_module->second);

	module = addDllToTreeView(TreeImports,moduleThunk);

	moduleThunk->hTreeItem = module;

	it_thunk = moduleThunk->thunkList.begin();

	while (it_thunk != moduleThunk->thunkList.end())
	{
	importThunk = &(it_thunk->second);
	apiFunction = addApiToTreeView(TreeImports,module,importThunk);
	importThunk->hTreeItem = apiFunction;
	it_thunk++;
	}

	it_module++;
	}
	}

	CTreeItem ImportsHandling::addDllToTreeView(CTreeViewCtrl& idTreeView, const ImportModuleThunk * importThunk)
	{
	CTreeItem item = idTreeView.InsertItem(L"", NULL, TVI_ROOT);
	updateModuleInTreeView(importThunk, item);
	return item;
	}

	CTreeItem ImportsHandling::addApiToTreeView(CTreeViewCtrl& idTreeView, CTreeItem parentDll, const ImportThunk * importThunk)
	{
	CTreeItem item = idTreeView.InsertItem(L"", parentDll, TVI_LAST);
	updateImportInTreeView(importThunk, item);
	return item;
	}

	void ImportsHandling::showImports(bool invalid, bool suspect)
	{
	std::map<DWORD_PTR, ImportModuleThunk>::iterator iterator1;
	std::map<DWORD_PTR, ImportThunk>::iterator iterator2;
	ImportModuleThunk * moduleThunk;
	ImportThunk * importThunk;

	TreeImports.SetFocus();
	TreeImports.SelectItem(NULL); //remove selection

	iterator1 = moduleList.begin();

	while (iterator1 != moduleList.end())
	{
	moduleThunk = &(iterator1->second);

	iterator2 = moduleThunk->thunkList.begin();

	while (iterator2 != moduleThunk->thunkList.end())
	{
	importThunk = &(iterator2->second);

	if (invalid && !importThunk->valid)
	{
	selectItem(TreeImports, importThunk->hTreeItem);
	setFocus(TreeImports, importThunk->hTreeItem);
	}
	else if (suspect && importThunk->suspect)
	{
	selectItem(TreeImports, importThunk->hTreeItem);
	setFocus(TreeImports, importThunk->hTreeItem);
	}
	else
	{
	unselectItem(TreeImports, importThunk->hTreeItem);
	}

	iterator2++;
	}

	iterator1++;
	}
	}

	bool ImportsHandling::isItemSelected(const CTreeViewCtrl& hwndTV, CTreeItem hItem)
	{
	const UINT state = TVIS_SELECTED;
	return ((hwndTV.GetItemState(hItem, state) & state) == state);
	}

	void ImportsHandling::unselectItem(CTreeViewCtrl& hwndTV, CTreeItem htItem)
	{
	selectItem(hwndTV, htItem, false);
	}

	bool ImportsHandling::selectItem(CTreeViewCtrl& hwndTV, CTreeItem hItem, bool select)
	{
	const UINT state = TVIS_SELECTED;
	return FALSE != hwndTV.SetItemState(hItem, (select ? state : 0), state);
	}

	void ImportsHandling::setFocus(CTreeViewCtrl& hwndTV, CTreeItem htItem)
	{
	// the current focus
	CTreeItem htFocus = hwndTV.GetSelectedItem();

	if ( htItem )
	{
	// set the focus
	if ( htItem != htFocus )
	{
	// remember the selection state of the item
	bool wasSelected = isItemSelected(hwndTV, htItem);

	if ( htFocus && isItemSelected(hwndTV, htFocus) )
	{
	// prevent the tree from unselecting the old focus which it
	// would do by default (TreeView_SelectItem unselects the
	// focused item)
	hwndTV.SelectItem(NULL);
	selectItem(hwndTV, htFocus);
	}

	hwndTV.SelectItem(htItem);

	if ( !wasSelected )
	{
	// need to clear the selection which TreeView_SelectItem() gave
	// us
	unselectItem(hwndTV, htItem);
	}
	//else: was selected, still selected - ok
	}
	//else: nothing to do, focus already there
	}
	else
	{
	if ( htFocus )
	{
	bool wasFocusSelected = isItemSelected(hwndTV, htFocus);

	// just clear the focus
	hwndTV.SelectItem(NULL);

	if ( wasFocusSelected )
	{
	// restore the selection state
	selectItem(hwndTV, htFocus);
	}
	}
	//else: nothing to do, no focus already
	}
	}

	bool ImportsHandling::invalidateFunction(CTreeItem selectedTreeNode)
	{
	std::map<DWORD_PTR, ImportModuleThunk>::iterator iterator1;
	std::map<DWORD_PTR, ImportThunk>::iterator iterator2;
	ImportModuleThunk * moduleThunk;
	ImportThunk * importThunk;


	iterator1 = moduleList.begin();

	while (iterator1 != moduleList.end())
	{
	moduleThunk = &(iterator1->second);

	iterator2 = moduleThunk->thunkList.begin();

	while (iterator2 != moduleThunk->thunkList.end())
	{
	importThunk = &(iterator2->second);

	if (importThunk->hTreeItem == selectedTreeNode)
	{
	importThunk->ordinal = 0;
	importThunk->hint = 0;
	importThunk->valid = false;
	importThunk->suspect = false;
	importThunk->moduleName[0] = 0;
	importThunk->name[0] = 0;

	updateImportInTreeView(importThunk, importThunk->hTreeItem);
	updateModuleInTreeView(moduleThunk, moduleThunk->hTreeItem);
	return true;
	}

	iterator2++;
	}

	iterator1++;
	}

	return false;
	}

	void ImportsHandling::updateImportInTreeView(const ImportThunk * importThunk, CTreeItem item)
	{
	if (importThunk->valid)
	{
	if (importThunk->name[0] != 0x00)
	{
	swprintf_s(tempString, _countof(tempString),TEXT("ord: %04X name: %S"),importThunk->ordinal,importThunk->name);
	}
	else
	{
	swprintf_s(tempString, _countof(tempString),TEXT("ord: %04X"),importThunk->ordinal);
	}

	swprintf_s(stringBuffer, _countof(stringBuffer),TEXT(" rva: ")TEXT(PRINTF_DWORD_PTR_HALF)TEXT(" mod: %s %s"),importThunk->rva,importThunk->moduleName,tempString);
	}
	else
	{
	swprintf_s(stringBuffer, _countof(stringBuffer),TEXT(" rva: ")TEXT(PRINTF_DWORD_PTR_HALF)TEXT(" ptr: ")TEXT(PRINTF_DWORD_PTR_FULL),importThunk->rva,importThunk->apiAddressVA);
	}

	TreeImports.SetItemText(item, stringBuffer);
	Icon icon = getAppropiateIcon(importThunk);
	TreeImports.SetItemImage(item, icon, icon);
	}

	void ImportsHandling::updateModuleInTreeView(const ImportModuleThunk * importThunk, CTreeItem item)
	{
	//swprintf_s(stringBuffer, _countof(stringBuffer),TEXT("%s FThunk: ")TEXT(PRINTF_DWORD_PTR_HALF)TEXT(" NbThunk: %d"),importThunk->moduleName,importThunk->firstThunk,importThunk->thunkList.size());
	swprintf_s(stringBuffer, _countof(stringBuffer),TEXT("%s (%d) FThunk: ")TEXT(PRINTF_DWORD_PTR_HALF),importThunk->moduleName,importThunk->thunkList.size(), importThunk->firstThunk);

	TreeImports.SetItemText(item, stringBuffer);
	Icon icon = getAppropiateIcon(importThunk->isValid());
	TreeImports.SetItemImage(item, icon, icon);
	}

	ImportsHandling::Icon ImportsHandling::getAppropiateIcon(const ImportThunk * importThunk)
	{
	if(importThunk->valid)
	{
	if(importThunk->suspect)
	{
	return iconWarning;
	}
	else
	{
	return iconCheck;
	}
	}
	else
	{
	return iconError;
	}
	}

	ImportsHandling::Icon ImportsHandling::getAppropiateIcon(bool valid)
	{
	if(valid)
	{
	return iconCheck;
	}
	else
	{
	return iconError;
	}
	}

	bool ImportsHandling::cutThunk(CTreeItem selectedTreeNode)
	{
	std::map<DWORD_PTR, ImportModuleThunk>::iterator iterator1;
	std::map<DWORD_PTR, ImportThunk>::iterator iterator2;
	ImportModuleThunk * moduleThunk;
	ImportThunk * importThunk;

	iterator1 = moduleList.begin();

	while (iterator1 != moduleList.end())
	{
	moduleThunk = &(iterator1->second);

	iterator2 = moduleThunk->thunkList.begin();

	while (iterator2 != moduleThunk->thunkList.end())
	{
	importThunk = &(iterator2->second);

	if (importThunk->hTreeItem == selectedTreeNode)
	{
	TreeImports.DeleteItem(importThunk->hTreeItem);
	moduleThunk->thunkList.erase(iterator2);

	if (moduleThunk->thunkList.empty())
	{
	TreeImports.DeleteItem(moduleThunk->hTreeItem);
	moduleList.erase(iterator1);
	}
	else
	{
	updateModuleInTreeView(moduleThunk, moduleThunk->hTreeItem);
	}
	return true;
	}

	iterator2++;
	}

	iterator1++;
	}

	return false;
	}

	bool ImportsHandling::deleteTreeNode(CTreeItem selectedTreeNode)
	{
	std::map<DWORD_PTR, ImportModuleThunk>::iterator iterator1;
	std::map<DWORD_PTR, ImportThunk>::iterator iterator2;
	ImportModuleThunk * moduleThunk;
	ImportThunk * importThunk;

	iterator1 = moduleList.begin();

	while (iterator1 != moduleList.end())
	{
	moduleThunk = &(iterator1->second);

	if (moduleThunk->hTreeItem == selectedTreeNode)
	{
	TreeImports.DeleteItem(moduleThunk->hTreeItem);

	moduleThunk->thunkList.clear();
	moduleList.erase(iterator1);
	return true;
	}
	else
	{
	iterator2 = moduleThunk->thunkList.begin();

	while (iterator2 != moduleThunk->thunkList.end())
	{
	importThunk = &(iterator2->second);

	if (importThunk->hTreeItem == selectedTreeNode)
	{
	TreeImports.DeleteItem(moduleThunk->hTreeItem);
	moduleThunk->thunkList.clear();
	moduleList.erase(iterator1);
	return true;
	}

	iterator2++;
	}
	}

	iterator1++;
	}

	return false;
	}

	DWORD_PTR ImportsHandling::getApiAddressByNode(CTreeItem selectedTreeNode)
	{
	std::map<DWORD_PTR, ImportModuleThunk>::iterator iterator1;
	std::map<DWORD_PTR, ImportThunk>::iterator iterator2;
	ImportModuleThunk * moduleThunk;
	ImportThunk * importThunk;

	iterator1 = moduleList.begin();

	while (iterator1 != moduleList.end())
	{
	moduleThunk = &(iterator1->second);

	iterator2 = moduleThunk->thunkList.begin();

	while (iterator2 != moduleThunk->thunkList.end())
	{
	importThunk = &(iterator2->second);

	if (importThunk->hTreeItem == selectedTreeNode)
	{
	return importThunk->apiAddressVA;
	}

	iterator2++;
	}

	iterator1++;
	}
	return 0;
	}


	void ImportsHandling::scanAndFixModuleList()
	{
	std::map<DWORD_PTR, ImportModuleThunk>::iterator iterator1;
	std::map<DWORD_PTR, ImportThunk>::iterator iterator2;
	ImportModuleThunk * moduleThunk;
	ImportThunk * importThunk;


	iterator1 = moduleList.begin();

	while (iterator1 != moduleList.end())
	{
	moduleThunk = &(iterator1->second);

	iterator2 = moduleThunk->thunkList.begin();

	while (iterator2 != moduleThunk->thunkList.end())
	{
	importThunk = &(iterator2->second);

	if (importThunk->moduleName[0] == 0 \|\| importThunk->moduleName[0] == L'?')
	{
	addNotFoundApiToModuleList(importThunk);
	}
	else
	{
	if (isNewModule(importThunk->moduleName))
	{
	addModuleToModuleList(importThunk->moduleName, importThunk->rva);
	}

	addFunctionToModuleList(importThunk);
	}

	iterator2++;
	}

	moduleThunk->thunkList.clear();

	iterator1++;
	}

	moduleList.clear();
	moduleList.insert(moduleListNew.begin(), moduleListNew.end());
	moduleListNew.clear();
	}

	bool ImportsHandling::findNewModules(std::map<DWORD_PTR, ImportThunk> & thunkList)
	{
	throw std::exception("The method or operation is not implemented.");
	}

	bool ImportsHandling::addModuleToModuleList(const WCHAR * moduleName, DWORD_PTR firstThunk)
	{
	ImportModuleThunk module;

	module.firstThunk = firstThunk;
	wcscpy_s(module.moduleName, MAX_PATH, moduleName);

	moduleListNew.insert(std::pair<DWORD_PTR,ImportModuleThunk>(firstThunk,module));

	return true;
	}

	bool ImportsHandling::isNewModule(const WCHAR * moduleName)
	{
	std::map<DWORD_PTR, ImportModuleThunk>::iterator iterator1;

	iterator1 = moduleListNew.begin();

	while (iterator1 != moduleListNew.end())
	{
	if (!_wcsicmp(iterator1->second.moduleName, moduleName))
	{
	return false;
	}

	iterator1++;
	}

	return true;
	}

	void ImportsHandling::addUnknownModuleToModuleList(DWORD_PTR firstThunk)
	{
	ImportModuleThunk module;

	module.firstThunk = firstThunk;
	wcscpy_s(module.moduleName, MAX_PATH, L"?");

	moduleListNew.insert(std::pair<DWORD_PTR,ImportModuleThunk>(firstThunk,module));
	}

	bool ImportsHandling::addNotFoundApiToModuleList(const ImportThunk * apiNotFound)
	{
	ImportThunk import;
	ImportModuleThunk * module = 0;
	std::map<DWORD_PTR, ImportModuleThunk>::iterator iterator1;
	DWORD_PTR rva = apiNotFound->rva;

	if (moduleListNew.size() > 0)
	{
	iterator1 = moduleListNew.begin();
	while (iterator1 != moduleListNew.end())
	{
	if (rva >= iterator1->second.firstThunk)
	{
	iterator1++;
	if (iterator1 == moduleListNew.end())
	{
	iterator1--;
	//new unknown module
	if (iterator1->second.moduleName[0] == L'?')
	{
	module = &(iterator1->second);
	}
	else
	{
	addUnknownModuleToModuleList(apiNotFound->rva);
	module = &(moduleListNew.find(rva)->second);
	}

	break;
	}
	else if (rva < iterator1->second.firstThunk)
	{
	iterator1--;
	module = &(iterator1->second);
	break;
	}
	}
	else
	{
	#ifdef DEBUG_COMMENTS
	Logger::debugLog("Error iterator1 != (*moduleThunkList).end()\r\n");
	#endif
	break;
	}
	}
	}
	else
	{
	//new unknown module
	addUnknownModuleToModuleList(apiNotFound->rva);
	module = &(moduleListNew.find(rva)->second);
	}

	if (!module)
	{
	#ifdef DEBUG_COMMENTS
	Logger::debugLog(TEXT("ImportsHandling::addFunction module not found rva ")TEXT(PRINTF_DWORD_PTR_FULL)TEXT("\r\n"),rva);
	#endif
	return false;
	}


	import.suspect = true;
	import.valid = false;
	import.va = apiNotFound->va;
	import.rva = apiNotFound->rva;
	import.apiAddressVA = apiNotFound->apiAddressVA;
	import.ordinal = 0;

	wcscpy_s(import.moduleName, MAX_PATH, L"?");
	strcpy_s(import.name, MAX_PATH, "?");

	module->thunkList.insert(std::pair<DWORD_PTR,ImportThunk>(import.rva, import));

	return true;
	}

	bool ImportsHandling::addFunctionToModuleList(const ImportThunk * apiFound)
	{
	ImportThunk import;
	ImportModuleThunk * module = 0;
	std::map<DWORD_PTR, ImportModuleThunk>::iterator iterator1;

	if (moduleListNew.size() > 1)
	{
	iterator1 = moduleListNew.begin();
	while (iterator1 != moduleListNew.end())
	{
	if (apiFound->rva >= iterator1->second.firstThunk)
	{
	iterator1++;
	if (iterator1 == moduleListNew.end())
	{
	iterator1--;
	module = &(iterator1->second);
	break;
	}
	else if (apiFound->rva < iterator1->second.firstThunk)
	{
	iterator1--;
	module = &(iterator1->second);
	break;
	}
	}
	else
	{
	#ifdef DEBUG_COMMENTS
	Logger::debugLog(TEXT("Error iterator1 != moduleListNew.end()\r\n"));
	#endif
	break;
	}
	}
	}
	else
	{
	iterator1 = moduleListNew.begin();
	module = &(iterator1->second);
	}

	if (!module)
	{
	#ifdef DEBUG_COMMENTS
	Logger::debugLog(TEXT("ImportsHandling::addFunction module not found rva ")TEXT(PRINTF_DWORD_PTR_FULL)TEXT("\r\n"),apiFound->rva);
	#endif
	return false;
	}


	import.suspect = apiFound->suspect;
	import.valid = apiFound->valid;
	import.va = apiFound->va;
	import.rva = apiFound->rva;
	import.apiAddressVA = apiFound->apiAddressVA;
	import.ordinal = apiFound->ordinal;
	import.hint = apiFound->hint;

	wcscpy_s(import.moduleName, MAX_PATH, apiFound->moduleName);
	strcpy_s(import.name, MAX_PATH, apiFound->name);

	module->thunkList.insert(std::pair<DWORD_PTR,ImportThunk>(import.rva, import));

	return true;
	}

	void ImportsHandling::expandAllTreeNodes()
	{
	changeExpandStateOfTreeNodes(TVE_EXPAND);
	}

	void ImportsHandling::collapseAllTreeNodes()
	{
	changeExpandStateOfTreeNodes(TVE_COLLAPSE);
	}

	void ImportsHandling::changeExpandStateOfTreeNodes(UINT flag)
	{
	std::map<DWORD_PTR, ImportModuleThunk>::iterator iterator1;
	ImportModuleThunk * moduleThunk;

	iterator1 = moduleList.begin();

	while (iterator1 != moduleList.end())
	{
	moduleThunk = &(iterator1->second);

	TreeImports.Expand(moduleThunk->hTreeItem, flag);

	iterator1++;
	}
	}

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