Textractor_test/GUI/host/host.cpp

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#include "host.h"
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#include "const.h"
#include "text.h"
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#include "defs.h"
#include "util.h"
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#include "../vnrhook/texthook.h"
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namespace
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{
class ProcessRecord
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{
public:
ProcessRecord(DWORD processId, HANDLE pipe) :
processId(processId),
pipe(pipe),
mappedFile(OpenFileMappingW(FILE_MAP_READ, FALSE, (ITH_SECTION_ + std::to_wstring(processId)).c_str())),
view(*(const TextHook(*)[MAX_HOOK])MapViewOfFile(mappedFile, FILE_MAP_READ, 0, 0, HOOK_SECTION_SIZE / 2)), // jichi 1/16/2015: Changed to half to hook section size
viewMutex(ITH_HOOKMAN_MUTEX_ + std::to_wstring(processId))
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{}
~ProcessRecord()
{
UnmapViewOfFile(view);
}
TextHook GetHook(uint64_t addr)
{
if (view == nullptr) return {};
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std::scoped_lock lock(viewMutex);
for (auto hook : view)
if (hook.address == addr) return hook;
return {};
}
template <typename T>
void Send(T data)
{
std::thread([=]
{
std::enable_if_t<sizeof(data) < PIPE_BUFFER_SIZE, DWORD> DUMMY;
WriteFile(pipe, &data, sizeof(data), &DUMMY, nullptr);
}).detach();
}
private:
DWORD processId;
HANDLE pipe;
AutoHandle<> mappedFile;
const TextHook(&view)[MAX_HOOK];
WinMutex viewMutex;
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};
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size_t HashThreadParam(ThreadParam tp)
{
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return std::hash<int64_t>()(tp.processId + tp.addr) + std::hash<int64_t>()(tp.ctx + tp.ctx2);
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}
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ThreadSafe<std::unordered_map<ThreadParam, TextThread, Functor<HashThreadParam>>, std::recursive_mutex> textThreadsByParams;
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ThreadSafe<std::unordered_map<DWORD, ProcessRecord>, std::recursive_mutex> processRecordsByIds;
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Host::ProcessEventHandler OnConnect, OnDisconnect;
Host::ThreadEventHandler OnCreate, OnDestroy;
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void RemoveThreads(std::function<bool(ThreadParam)> removeIf)
{
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std::vector<TextThread*> threadsToRemove;
std::for_each(textThreadsByParams->begin(), textThreadsByParams->end(), [&](auto& it) { if (removeIf(it.first)) threadsToRemove.push_back(&it.second); });
for (auto thread : threadsToRemove)
{
OnDestroy(*thread);
textThreadsByParams->erase(thread->tp);
}
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}
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void CreatePipe()
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{
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std::thread([]
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{
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SECURITY_DESCRIPTOR pipeSD = {};
InitializeSecurityDescriptor(&pipeSD, SECURITY_DESCRIPTOR_REVISION);
SetSecurityDescriptorDacl(&pipeSD, TRUE, NULL, FALSE); // Allow non-admin processes to connect to pipe created by admin host
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SECURITY_ATTRIBUTES pipeSA = { sizeof(pipeSA), &pipeSD, FALSE };
struct PipeCloser { void operator()(HANDLE h) { DisconnectNamedPipe(h); CloseHandle(h); } };
AutoHandle<PipeCloser>
hookPipe = CreateNamedPipeW(HOOK_PIPE, PIPE_ACCESS_INBOUND, PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE, PIPE_UNLIMITED_INSTANCES, 0, PIPE_BUFFER_SIZE, MAXDWORD, &pipeSA),
hostPipe = CreateNamedPipeW(HOST_PIPE, PIPE_ACCESS_OUTBOUND, PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE, PIPE_UNLIMITED_INSTANCES, PIPE_BUFFER_SIZE, 0, MAXDWORD, &pipeSA);
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ConnectNamedPipe(hookPipe, nullptr);
BYTE buffer[PIPE_BUFFER_SIZE] = {};
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DWORD bytesRead, processId;
ReadFile(hookPipe, &processId, sizeof(processId), &bytesRead, nullptr);
processRecordsByIds->try_emplace(processId, processId, hostPipe);
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OnConnect(processId);
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CreatePipe();
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while (ReadFile(hookPipe, buffer, PIPE_BUFFER_SIZE, &bytesRead, nullptr))
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switch (*(HostNotificationType*)buffer)
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{
case HOST_NOTIFICATION_RMVHOOK:
{
auto info = *(HookRemovedNotif*)buffer;
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RemoveThreads([&](ThreadParam tp) { return tp.processId == processId && tp.addr == info.address; });
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}
break;
case HOST_NOTIFICATION_TEXT:
{
auto info = *(ConsoleOutputNotif*)buffer;
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Host::AddConsoleOutput(Util::StringToWideString(info.message).value());
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}
break;
default:
{
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auto tp = *(ThreadParam*)buffer;
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if (textThreadsByParams->count(tp) == 0)
{
TextThread& created = textThreadsByParams->try_emplace(tp, tp, Host::GetHookParam(tp)).first->second;
OnCreate(created);
}
textThreadsByParams->find(tp)->second.Push(buffer + sizeof(tp), bytesRead - sizeof(tp));
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}
break;
}
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RemoveThreads([&](ThreadParam tp) { return tp.processId == processId; });
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OnDisconnect(processId);
processRecordsByIds->erase(processId);
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}).detach();
}
}
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namespace Host
{
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void Start(ProcessEventHandler Connect, ProcessEventHandler Disconnect, ThreadEventHandler Create, ThreadEventHandler Destroy, TextThread::OutputCallback Output)
{
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OnConnect = Connect;
OnDisconnect = Disconnect;
OnCreate = [Create](TextThread& thread) { Create(thread); thread.Start(); };
OnDestroy = [Destroy](TextThread& thread) { thread.Stop(); Destroy(thread); };
TextThread::Output = Output;
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processRecordsByIds->try_emplace(console.processId, console.processId, INVALID_HANDLE_VALUE);
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OnConnect(console.processId);
textThreadsByParams->try_emplace(console, console, HookParam{}, CONSOLE);
OnCreate(GetThread(console));
textThreadsByParams->try_emplace(clipboard, clipboard, HookParam{}, CLIPBOARD);
OnCreate(GetThread(clipboard));
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CreatePipe();
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SetWindowsHookExW(WH_GETMESSAGE, [](int statusCode, WPARAM wParam, LPARAM lParam)
{
if (statusCode == HC_ACTION && wParam == PM_REMOVE && ((MSG*)lParam)->message == WM_CLIPBOARDUPDATE)
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if (auto text = Util::GetClipboardText()) GetThread(clipboard).AddSentence(text.value());
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return CallNextHookEx(NULL, statusCode, wParam, lParam);
}, NULL, GetCurrentThreadId());
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}
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bool InjectProcess(DWORD processId, DWORD timeout)
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{
if (processId == GetCurrentProcessId()) return false;
WinMutex(ITH_HOOKMAN_MUTEX_ + std::to_wstring(processId));
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if (GetLastError() == ERROR_ALREADY_EXISTS)
{
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AddConsoleOutput(ALREADY_INJECTED);
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return false;
}
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static std::wstring location = Util::GetModuleFilename(LoadLibraryExW(ITH_DLL, nullptr, DONT_RESOLVE_DLL_REFERENCES)).value();
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if (AutoHandle<> process = OpenProcess(PROCESS_ALL_ACCESS, FALSE, processId))
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{
#ifdef _WIN64
BOOL invalidProcess = FALSE;
IsWow64Process(process, &invalidProcess);
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if (invalidProcess)
{
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AddConsoleOutput(ARCHITECTURE_MISMATCH);
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return false;
}
#endif
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if (LPVOID remoteData = VirtualAllocEx(process, nullptr, (location.size() + 1) * sizeof(wchar_t), MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE))
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{
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WriteProcessMemory(process, remoteData, location.c_str(), (location.size() + 1) * sizeof(wchar_t), nullptr);
if (AutoHandle<> thread = CreateRemoteThread(process, nullptr, 0, (LPTHREAD_START_ROUTINE)LoadLibraryW, remoteData, 0, nullptr))
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{
WaitForSingleObject(thread, timeout);
VirtualFreeEx(process, remoteData, 0, MEM_RELEASE);
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return true;
}
VirtualFreeEx(process, remoteData, 0, MEM_RELEASE);
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}
}
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AddConsoleOutput(INJECT_FAILED);
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return false;
}
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void DetachProcess(DWORD processId)
{
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processRecordsByIds->at(processId).Send(HostCommandType(HOST_COMMAND_DETACH));
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}
void InsertHook(DWORD processId, HookParam hp)
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{
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processRecordsByIds->at(processId).Send(InsertHookCmd(hp));
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}
HookParam GetHookParam(ThreadParam tp)
{
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return processRecordsByIds->at(tp.processId).GetHook(tp.addr).hp;
}
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TextThread& GetThread(ThreadParam tp)
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{
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return textThreadsByParams->at(tp);
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}
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void AddConsoleOutput(std::wstring text)
{
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GetThread(console).AddSentence(text);
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}
}