mirror of
https://github.com/HIllya51/LunaTranslator.git
synced 2024-12-28 08:04:13 +08:00
349 lines
8.8 KiB
C++
349 lines
8.8 KiB
C++
//=====================================================================
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//
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// PyStand.cpp -
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//
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// Created by skywind on 2022/02/03
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// Last Modified: 2023/03/17 20:06
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//
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//=====================================================================
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#ifdef _MSC_VER
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#define _CRT_SECURE_NO_WARNINGS 1
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#endif
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#include <shlwapi.h>
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#include <string>
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#include <string.h>
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#include <winbase.h>
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#include <wincon.h>
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#include "PyStand.h"
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#ifdef _MSC_VER
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#pragma comment(lib, "shlwapi.lib")
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#endif
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//---------------------------------------------------------------------
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// dtor
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//---------------------------------------------------------------------
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PyStand::~PyStand()
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{
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FreeLibrary(_hDLL);
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}
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//---------------------------------------------------------------------
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// ctor
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//---------------------------------------------------------------------
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PyStand::PyStand(const wchar_t *runtime)
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{
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_hDLL = NULL;
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_Py_Main = NULL;
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if (CheckEnviron(runtime) == false) {
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exit(1);
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}
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if (LoadPython() == false) {
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exit(2);
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}
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}
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//---------------------------------------------------------------------
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// init: _args, _argv, _cwd, _pystand, _home, _runtime,
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//---------------------------------------------------------------------
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bool PyStand::CheckEnviron(const wchar_t *rtp)
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{
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// init: _args, _argv
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LPWSTR *argvw;
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int argc;
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_args = GetCommandLineW();
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argvw = CommandLineToArgvW(_args.c_str(), &argc);
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if (argvw == NULL) {
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MessageBoxA(NULL, "Error in CommandLineToArgvW()", "ERROR", MB_OK);
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return false;
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}
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_argv.resize(argc);
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for (int i = 0; i < argc; i++) {
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_argv[i] = argvw[i];
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}
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LocalFree(argvw);
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// init: _cwd (current working directory)
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wchar_t path[MAX_PATH + 10];
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GetCurrentDirectoryW(MAX_PATH + 1, path);
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_cwd = path;
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// init: _pystand (full path of PyStand.exe)
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GetModuleFileNameW(NULL, path, MAX_PATH + 1);
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#if 0
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wsprintf(path, L"e:\\github\\tools\\pystand\\pystand.exe");
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#endif
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_pystand = path;
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// init: _home
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int size = (int)wcslen(path);
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for (; size > 0; size--) {
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if (path[size - 1] == L'/') break;
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if (path[size - 1] == L'\\') break;
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}
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path[size] = 0;
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SetCurrentDirectoryW(path);
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GetCurrentDirectoryW(MAX_PATH + 1, path);
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_home = path;
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SetCurrentDirectoryW(_cwd.c_str());
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// init: _runtime (embedded python directory)
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bool abspath = false;
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if (wcslen(rtp) >= 3) {
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if (rtp[1] == L':') {
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if (rtp[2] == L'/' || rtp[2] == L'\\')
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abspath = true;
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}
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}
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if (abspath == false) {
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_runtime = _home + L"\\" + rtp;
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}
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else {
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_runtime = rtp;
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}
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GetFullPathNameW(_runtime.c_str(), MAX_PATH + 1, path, NULL);
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_runtime = path;
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// check home
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std::wstring check = _runtime;
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if (!PathFileExistsW(check.c_str())) {
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std::wstring msg = L"Missing embedded Python3 in:\n" + check;
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MessageBoxW(NULL, msg.c_str(), L"ERROR", MB_OK);
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return false;
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}
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// check python3.dll
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std::wstring check2 = _runtime + L"\\python3.dll";
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if (!PathFileExistsW(check2.c_str())) {
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std::wstring msg = L"Missing python3.dll in:\r\n" + check;
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MessageBoxW(NULL, msg.c_str(), L"ERROR", MB_OK);
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return false;
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}
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// setup environment
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SetEnvironmentVariableW(L"PYSTAND", _pystand.c_str());
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SetEnvironmentVariableW(L"PYSTAND_HOME", _home.c_str());
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SetEnvironmentVariableW(L"PYSTAND_RUNTIME", _runtime.c_str());
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// unnecessary to init PYSTAND_SCRIPT here.
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#if 0
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SetEnvironmentVariableW(L"PYSTAND_SCRIPT", _script.c_str());
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#endif
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#if 0
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wprintf(L"%s - %s\n", _pystand.c_str(), path);
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MessageBoxW(NULL, _pystand.c_str(), _home.c_str(), MB_OK);
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#endif
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return true;
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}
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//---------------------------------------------------------------------
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// load python
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//---------------------------------------------------------------------
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bool PyStand::LoadPython()
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{
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std::wstring runtime = _runtime;
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std::wstring previous;
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// save current directory
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wchar_t path[MAX_PATH + 10];
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GetCurrentDirectoryW(MAX_PATH + 1, path);
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previous = path;
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// python dll must be load under "runtime"
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SetCurrentDirectoryW(runtime.c_str());
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// LoadLibrary
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_hDLL = (HINSTANCE)LoadLibraryA("python3.dll");
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if (_hDLL) {
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_Py_Main = (t_Py_Main)GetProcAddress(_hDLL, "Py_Main");
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}
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// restore director
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SetCurrentDirectoryW(previous.c_str());
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if (_hDLL == NULL) {
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std::wstring msg = L"Cannot load python3.dll from:\r\n" + runtime;
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MessageBoxW(NULL, msg.c_str(), L"ERROR", MB_OK);
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return false;
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}
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else if (_Py_Main == NULL) {
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std::wstring msg = L"Cannot find Py_Main() in:\r\n";
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msg += runtime + L"\\python3.dll";
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MessageBoxW(NULL, msg.c_str(), L"ERROR", MB_OK);
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return false;
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}
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return true;
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}
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//---------------------------------------------------------------------
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// run string
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//---------------------------------------------------------------------
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int PyStand::RunString(const wchar_t *script)
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{
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if (_Py_Main == NULL) {
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return -1;
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}
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int hr = 0;
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int i;
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_py_argv.resize(0);
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// init arguments
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_py_argv.push_back(_argv[0]);
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_py_argv.push_back(L"-I");
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_py_argv.push_back(L"-s");
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_py_argv.push_back(L"-S");
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_py_argv.push_back(L"-c");
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_py_argv.push_back(script);
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for (i = 1; i < (int)_argv.size(); i++) {
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_py_argv.push_back(_argv[i]);
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}
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// finalize arguments
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_py_args.resize(0);
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for (i = 0; i < (int)_py_argv.size(); i++) {
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_py_args.push_back((wchar_t*)_py_argv[i].c_str());
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}
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hr = _Py_Main((int)_py_args.size(), &_py_args[0]);
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return hr;
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}
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//---------------------------------------------------------------------
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// LoadScript()
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//---------------------------------------------------------------------
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int PyStand::DetectScript()
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{
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// init: _script (init script like PyStand.int or PyStand.py)
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int size = (int)_pystand.size() - 1;
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for (; size >= 0; size--) {
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if (_pystand[size] == L'.') break;
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}
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if (size < 0) size = (int)_pystand.size();
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std::wstring main = _pystand.substr(0, size);
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std::vector<const wchar_t*> exts;
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std::vector<std::wstring> scripts;
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_script.clear();
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std::wstring test;
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test = _home + L"LunaTranslator\\LunaTranslator_main.py";
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if (PathFileExistsW(test.c_str())) {
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_script = test;
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}
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if (_script.empty()) {
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std::wstring msg = L"Can't find either of:\r\n";
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for (int j = 0; j < (int)scripts.size(); j++) {
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msg += scripts[j] + L"\r\n";
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}
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MessageBoxW(NULL, msg.c_str(), L"ERROR", MB_OK);
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return -1;
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}
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SetEnvironmentVariableW(L"PYSTAND_SCRIPT", _script.c_str());
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return 0;
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}
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//---------------------------------------------------------------------
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// init script
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//---------------------------------------------------------------------
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const auto init_script =
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L"import sys\n"
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L"import os\n"
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L"PYSTAND = os.environ['PYSTAND']\n"
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L"PYSTAND_HOME = os.environ['PYSTAND_HOME']\n"
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L"PYSTAND_RUNTIME = os.environ['PYSTAND_RUNTIME']\n"
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L"PYSTAND_SCRIPT = os.environ['PYSTAND_SCRIPT']\n"
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L"sys.path_origin = [n for n in sys.path]\n"
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L"sys.PYSTAND = PYSTAND\n"
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L"sys.PYSTAND_HOME = PYSTAND_HOME\n"
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L"sys.PYSTAND_SCRIPT = PYSTAND_SCRIPT\n"
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L"def MessageBox(msg, info = 'Message'):\n"
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L" import ctypes\n"
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L" ctypes.windll.user32.MessageBoxW(None, str(msg), str(info), 0)\n"
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L" return 0\n"
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L"os.MessageBox = MessageBox\n"
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#ifndef PYSTAND_CONSOLE
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L"try:\n"
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L" fd = os.open('CONOUT$', os.O_RDWR | os.O_BINARY)\n"
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L" fp = os.fdopen(fd, 'w')\n"
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L" sys.stdout = fp\n"
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L" sys.stderr = fp\n"
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L" attached = True\n"
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L"except Exception as e:\n"
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L" fp = open(os.devnull, 'w')\n"
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L" sys.stdout = fp\n"
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L" sys.stderr = fp\n"
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L" attached = False\n"
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#endif
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L"sys.argv = [PYSTAND_SCRIPT] + sys.argv[1:]\n"
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L"text = open(PYSTAND_SCRIPT, 'rb').read()\n"
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L"environ = {'__file__': PYSTAND_SCRIPT, '__name__': '__main__'}\n"
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L"environ['__package__'] = None\n"
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#ifndef PYSTAND_CONSOLE
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L"try:\n"
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L" code = compile(text, PYSTAND_SCRIPT, 'exec')\n"
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L" exec(code, environ)\n"
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L"except Exception:\n"
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L" if attached:\n"
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L" raise\n"
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L" import traceback, io\n"
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L" sio = io.StringIO()\n"
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L" traceback.print_exc(file = sio)\n"
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L" os.MessageBox(sio.getvalue(), 'Error')\n"
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#else
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L"code = compile(text, PYSTAND_SCRIPT, 'exec')\n"
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L"exec(code, environ)\n"
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#endif
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"";
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//---------------------------------------------------------------------
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// main
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//---------------------------------------------------------------------
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//! flag: -static
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//! src:
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//! link: stdc++, shlwapi, resource.o
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//! prebuild: windres resource.rc -o resource.o
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//! mode: win
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//! int: objs
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#ifdef PYSTAND_CONSOLE
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int main()
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#else
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int WINAPI
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WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, LPSTR args, int show)
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#endif
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{
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PyStand ps(L"LunaTranslator\\runtime");
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if (ps.DetectScript() != 0) {
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return 3;
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}
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#ifndef PYSTAND_CONSOLE
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if (AttachConsole(ATTACH_PARENT_PROCESS)) {
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freopen("CONOUT$", "w", stdout);
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freopen("CONOUT$", "w", stderr);
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int fd = _fileno(stdout);
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if (fd >= 0) {
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std::string fn = std::to_string(fd);
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SetEnvironmentVariableA("PYSTAND_STDOUT", fn.c_str());
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}
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fd = _fileno(stdin);
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if (fd >= 0) {
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std::string fn = std::to_string(fd);
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SetEnvironmentVariableA("PYSTAND_STDIN", fn.c_str());
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}
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}
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#endif
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int hr = ps.RunString(init_script);
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// printf("finalize\n");
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return hr;
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}
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