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tabby/tabby-uac/UAC/UAC.cpp
2021-10-07 21:57:33 +02:00

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#include "stdafx.h"
#include <Windows.h>
#include <memory>
#include <string>
#include <process.h>
#include <codecvt>
#include <tuple>
#include <io.h>
#include <fcntl.h>
#define CONTROL_MAGIC 0xDEADBEEF
#define CONTROL_WINDOW_SIZE 1
#define CONTROL_KILL 2
HPCON hPC = INVALID_HANDLE_VALUE;
HANDLE pipeControl;
PROCESS_INFORMATION childProcess;
HRESULT CreatePseudoConsoleAndPipes(HPCON* phPC, HANDLE* phPipeIn, HANDLE* phPipeOut)
{
HRESULT hr = E_UNEXPECTED;
HANDLE hPipePTYIn = INVALID_HANDLE_VALUE;
HANDLE hPipePTYOut = INVALID_HANDLE_VALUE;
// Create the pipes to which the ConPTY will connect
if (CreatePipe(&hPipePTYIn, phPipeOut, NULL, 0) &&
CreatePipe(phPipeIn, &hPipePTYOut, NULL, 0))
{
// Determine required size of Pseudo Console
COORD consoleSize = { 0 };
CONSOLE_SCREEN_BUFFER_INFO csbi;
HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
if (GetConsoleScreenBufferInfo(hConsole, &csbi))
{
consoleSize.X = csbi.srWindow.Right - csbi.srWindow.Left + 1;
consoleSize.Y = csbi.srWindow.Bottom - csbi.srWindow.Top + 1;
}
hr = CreatePseudoConsole(consoleSize, hPipePTYIn, hPipePTYOut, 0, phPC);
if (INVALID_HANDLE_VALUE != hPipePTYOut) CloseHandle(hPipePTYOut);
if (INVALID_HANDLE_VALUE != hPipePTYIn) CloseHandle(hPipePTYIn);
}
return hr;
}
HRESULT InitializeStartupInfoAttachedToPseudoConsole(STARTUPINFOEX* pStartupInfo, HPCON hPC)
{
HRESULT hr = E_UNEXPECTED;
if (pStartupInfo)
{
SIZE_T attrListSize;
pStartupInfo->StartupInfo.cb = sizeof(STARTUPINFOEX);
// Get the size of the thread attribute list.
InitializeProcThreadAttributeList(NULL, 1, 0, &attrListSize);
// Allocate a thread attribute list of the correct size
pStartupInfo->lpAttributeList = reinterpret_cast<LPPROC_THREAD_ATTRIBUTE_LIST>(malloc(attrListSize));
// Initialize thread attribute list
if (pStartupInfo->lpAttributeList
&& InitializeProcThreadAttributeList(pStartupInfo->lpAttributeList, 1, 0, &attrListSize))
{
// Set Pseudo Console attribute
hr = UpdateProcThreadAttribute(
pStartupInfo->lpAttributeList,
0,
PROC_THREAD_ATTRIBUTE_PSEUDOCONSOLE,
hPC,
sizeof(HPCON),
NULL,
NULL)
? S_OK
: HRESULT_FROM_WIN32(GetLastError());
}
else
{
hr = HRESULT_FROM_WIN32(GetLastError());
}
}
return hr;
}
#define TC_NONE 0
#define TC_UTF16_TO_UTF8 1
#define TC_UTF8_TO_UTF16 2
void __cdecl PipeWriter(LPVOID info)
{
auto pipes = (std::tuple<HANDLE, HANDLE, int>*)info;
auto fIn = std::get<0>(*pipes);
auto fOut = std::get<1>(*pipes);
auto tcMode = std::get<2>(*pipes);
tcMode = TC_NONE;
const DWORD BUFSIZE = 512;
char szBuffer[BUFSIZE];
std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>, wchar_t> conversion;
auto readSucceeded = FALSE;
DWORD bytesRead, totalBytesRead;
do
{
totalBytesRead = 0;
do {
readSucceeded = ReadFile(fIn, szBuffer + totalBytesRead, BUFSIZE - totalBytesRead, &bytesRead, NULL);
totalBytesRead += bytesRead;
if (!readSucceeded || bytesRead <= 0) {
break;
}
if (szBuffer[totalBytesRead - 1] != '\x1b') {
break;
}
} while (true);
if (tcMode == TC_NONE) {
WriteFile(fOut, szBuffer, totalBytesRead, NULL, NULL);
}
else if (tcMode == TC_UTF16_TO_UTF8) {
std::string utf8String = conversion.to_bytes(std::wstring((const wchar_t*)szBuffer, totalBytesRead / 2));
WriteFile(fOut, utf8String.c_str(), utf8String.length(), NULL, NULL);
}
else if (tcMode == TC_UTF8_TO_UTF16) {
std::wstring utf16String = conversion.from_bytes(szBuffer, szBuffer + totalBytesRead);
//for (int i = 0; i < utf16String.length(); i++) {
//utf16String[i] = _byteswap_ushort(utf16String[i]);
//}
//utf16String = L"тест";
WriteFile(fOut, utf16String.c_str(), utf16String.length() * 2, NULL, NULL);
}
} while (readSucceeded && bytesRead >= 0);
}
void __cdecl InputListener(LPVOID info) {
std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>, wchar_t> conversion;
auto pipes = (std::pair<HANDLE, HANDLE>*)info;
HANDLE input = GetStdHandle(STD_INPUT_HANDLE);
constexpr int bufferSize = 128;
INPUT_RECORD records[bufferSize];
DWORD numRead;
while (true)
{
if (!ReadConsoleInput(input, records, bufferSize, &numRead)) {
return;
}
for (int i = 0; i < numRead; i++) {
if (records[i].EventType == KEY_EVENT && records[i].Event.KeyEvent.bKeyDown) {
wchar_t ch[2] = { records[i].Event.KeyEvent.uChar.UnicodeChar, 0 };
if (ch[0] < 128) {
WriteFile(pipes->second, &records[i].Event.KeyEvent.uChar.AsciiChar, sizeof(char), NULL, NULL);
}
else {
std::string utf8String = conversion.to_bytes(std::wstring(ch));
WriteFile(pipes->second, utf8String.c_str(), utf8String.length(), NULL, NULL);
}
}
if (records[i].EventType == WINDOW_BUFFER_SIZE_EVENT) {
auto size = (WINDOW_BUFFER_SIZE_RECORD)records[i].Event.WindowBufferSizeEvent;
auto width = size.dwSize.X;
auto height = size.dwSize.Y;
uint32_t buffer[] = { CONTROL_MAGIC, CONTROL_WINDOW_SIZE, width, height };
WriteFile(pipeControl, buffer, sizeof(buffer), NULL, NULL);
}
}
}
}
void __cdecl ControlListener(LPVOID info)
{
const DWORD BUFSIZE = 128;
uint32_t buffer[BUFSIZE / sizeof(uint32_t)];
SHORT width = 0, height = 0;
DWORD bytesRead;
auto readSucceeded = FALSE;
do
{
readSucceeded = ReadFile(pipeControl, buffer, BUFSIZE, &bytesRead, NULL);
if (buffer[0] == CONTROL_MAGIC) {
if (buffer[1] == CONTROL_WINDOW_SIZE) {
auto newWidth = (SHORT)buffer[2];
auto newHeight = (SHORT)buffer[3];
printf("Control: resize %ix%i\n", newWidth, newHeight);
if (newWidth != width || newHeight != height) {
width = newWidth;
height = newHeight;
ResizePseudoConsole(hPC, { width, height });
}
}
if (buffer[1] == CONTROL_KILL) {
printf("Control: kill\n");
TerminateProcess(childProcess.hProcess, 1);
ExitProcess(1);
}
}
} while (readSucceeded && bytesRead >= 0);
}
BOOL WINAPI CtrlHandler(DWORD fdwCtrlType)
{
uint32_t buffer[] = { CONTROL_MAGIC, CONTROL_KILL };
WriteFile(pipeControl, buffer, sizeof(buffer), NULL, NULL);
return FALSE;
}
int wmain(int argc, wchar_t* argv[])
{
if (argc > 1 && lstrcmp(argv[1], L"--pipe") != 0) {
wchar_t pipeName[256];
wsprintf(pipeName, L"\\\\.\\pipe\\uac-pty-%i", rand());
HANDLE pipeIn = CreateNamedPipe((std::wstring(pipeName) + L"-in").c_str(), PIPE_ACCESS_DUPLEX, PIPE_TYPE_BYTE, PIPE_UNLIMITED_INSTANCES, 256, 256, 0, NULL);
HANDLE pipeOut = CreateNamedPipe((std::wstring(pipeName) + L"-out").c_str(), PIPE_ACCESS_DUPLEX, PIPE_TYPE_BYTE, PIPE_UNLIMITED_INSTANCES, 256, 256, 0, NULL);
pipeControl = CreateNamedPipe((std::wstring(pipeName) + L"-control").c_str(), PIPE_ACCESS_DUPLEX, PIPE_TYPE_BYTE, PIPE_UNLIMITED_INSTANCES, 256, 256, 0, NULL);
std::wstring cmd = L"--pipe " + std::wstring(pipeName) + L" ";
for (int i = 1; i < argc; i++) {
cmd += L"\"";
cmd += argv[i];
cmd += L"\" ";
}
HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
DWORD consoleMode;
GetConsoleMode(hConsole, &consoleMode);
SetConsoleMode(hConsole, ENABLE_PROCESSED_OUTPUT | ENABLE_VIRTUAL_TERMINAL_PROCESSING);
hConsole = GetStdHandle(STD_INPUT_HANDLE);
GetConsoleMode(hConsole, &consoleMode);
SetConsoleMode(hConsole, ENABLE_WINDOW_INPUT | ENABLE_VIRTUAL_TERMINAL_INPUT);
SHELLEXECUTEINFO ShExecInfo = { 0 };
ShExecInfo.cbSize = sizeof(SHELLEXECUTEINFO);
ShExecInfo.fMask = SEE_MASK_NOCLOSEPROCESS;
ShExecInfo.hwnd = NULL;
ShExecInfo.lpVerb = L"runas";
//ShExecInfo.lpVerb = NULL;
ShExecInfo.lpFile = argv[0];
ShExecInfo.lpParameters = cmd.c_str();
ShExecInfo.lpDirectory = NULL;
ShExecInfo.nShow = SW_HIDE;
ShExecInfo.hInstApp = NULL;
ShellExecuteEx(&ShExecInfo);
SetConsoleCtrlHandler(CtrlHandler, TRUE);
//_setmode(_fileno(stdout), _O_U16TEXT);
SetConsoleOutputCP(CP_UTF8);
Sleep(1000);
_beginthread(PipeWriter, 0, new std::tuple<HANDLE, HANDLE, int>{ pipeOut, GetStdHandle(STD_OUTPUT_HANDLE), TC_UTF8_TO_UTF16 });
_beginthread(InputListener, 0, new std::pair<HANDLE, HANDLE>{ GetStdHandle(STD_INPUT_HANDLE), pipeIn });
WaitForSingleObject(ShExecInfo.hProcess, INFINITE);
CloseHandle(ShExecInfo.hProcess);
return 0;
}
HANDLE pipeIn = CreateFile((std::wstring(argv[2]) + L"-in").c_str(), GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL);
HANDLE pipeOut = CreateFile((std::wstring(argv[2]) + L"-out").c_str(), GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
pipeControl = CreateFile((std::wstring(argv[2]) + L"-control").c_str(), GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL);
std::wstring cmd = L"";
for (int i = 3; i < argc; i++) {
cmd += L"\"";
cmd += argv[i];
cmd += L"\" ";
}
// Create the Pseudo Console and pipes to it
HANDLE hPipeIn{ INVALID_HANDLE_VALUE };
HANDLE hPipeOut{ INVALID_HANDLE_VALUE };
auto hr = CreatePseudoConsoleAndPipes(&hPC, &hPipeIn, &hPipeOut);
if (S_OK == hr)
{
// Create & start thread to listen to the incoming pipe
// Note: Using CRT-safe _beginthread() rather than CreateThread()
_beginthread(PipeWriter, 0, new std::tuple<HANDLE, HANDLE, int>{ hPipeIn, pipeOut, TC_NONE });
_beginthread(PipeWriter, 0, new std::tuple<HANDLE, HANDLE, int>{ pipeIn, hPipeOut, TC_NONE });
_beginthread(ControlListener, 0, new std::pair<HANDLE, HANDLE>{ pipeControl, hPipeOut });
// Initialize the necessary startup info struct
STARTUPINFOEX startupInfo{};
if (S_OK == InitializeStartupInfoAttachedToPseudoConsole(&startupInfo, hPC))
{
// Launch ping to emit some text back via the pipe
hr = CreateProcessW(
NULL, // No module name - use Command Line
(LPWSTR)cmd.c_str(), // Command Line
NULL,
NULL,
FALSE,
EXTENDED_STARTUPINFO_PRESENT, // Creation flags
NULL, // Use parent's environment block
NULL, // Use parent's starting directory
&startupInfo.StartupInfo, // Pointer to STARTUPINFO
&childProcess) // Pointer to PROCESS_INFORMATION
? S_OK
: GetLastError();
if (S_OK == hr)
{
Sleep(500);
// Wait up to 10s for ping process to complete
WaitForSingleObject(childProcess.hProcess, INFINITE);
// Allow listening thread to catch-up with final output!
Sleep(500);
}
// --- CLOSEDOWN ---
// Now safe to clean-up client app's process-info & thread
CloseHandle(childProcess.hThread);
CloseHandle(childProcess.hProcess);
// Cleanup attribute list
DeleteProcThreadAttributeList(startupInfo.lpAttributeList);
free(startupInfo.lpAttributeList);
}
// Close ConPTY - this will terminate client process if running
ClosePseudoConsole(hPC);
// Clean-up the pipes
if (INVALID_HANDLE_VALUE != hPipeOut) CloseHandle(hPipeOut);
if (INVALID_HANDLE_VALUE != hPipeIn) CloseHandle(hPipeIn);
CloseHandle(pipeIn);
CloseHandle(pipeOut);
}
return S_OK == hr ? EXIT_SUCCESS : EXIT_FAILURE;
}