mirror of
https://github.com/HIllya51/LunaTranslator.git
synced 2024-12-27 15:44:12 +08:00
354 lines
8.7 KiB
C++
354 lines
8.7 KiB
C++
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#include "PyStand.h"
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#include <iomanip>
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#include <sstream>
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#include <chrono>
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#include <ctime>
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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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{
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exit(1);
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}
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if (LoadPython() == false)
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{
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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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{
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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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{
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_argv[i] = argvw[i];
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}
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LocalFree(argvw);
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wchar_t path[MAX_PATH + 10];
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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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_home = std::filesystem::path(path).parent_path().wstring();
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SetCurrentDirectoryW(_home.c_str());
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_runtime = (std::filesystem::path(_home) / rtp).wstring();
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// check home
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if (!PathFileExistsW(_runtime.c_str()))
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{
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std::wstring msg = L"Missing embedded Python3 in:\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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// check python3.dll
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if (!PathFileExistsW((_runtime + L"\\python3.dll").c_str()))
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{
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std::wstring msg = L"Missing python3.dll in:\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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// 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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{
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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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{
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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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{
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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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{
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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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{
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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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{
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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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{
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if (_pystand[size] == L'.')
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break;
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}
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if (size < 0)
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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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{
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_script = test;
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}
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if (_script.empty())
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{
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std::wstring msg = L"Can't find :\r\n" + test;
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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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std::vector<wchar_t> buffer(MAX_PATH);
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GetModuleFileNameW(GetModuleHandle(0), buffer.data(), MAX_PATH);
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SetEnvironmentVariableW(L"LUNA_EXE_NAME", buffer.data());
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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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LR"(
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import sys
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import os
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PYSTAND = os.environ['PYSTAND']
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PYSTAND_HOME = os.environ['PYSTAND_HOME']
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PYSTAND_RUNTIME = os.environ['PYSTAND_RUNTIME']
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PYSTAND_SCRIPT = os.environ['PYSTAND_SCRIPT']
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sys.path_origin = [n for n in sys.path]
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sys.PYSTAND = PYSTAND
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sys.PYSTAND_HOME = PYSTAND_HOME
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sys.PYSTAND_SCRIPT = PYSTAND_SCRIPT
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def MessageBox(msg, info = 'Message'):
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import ctypes
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ctypes.windll.user32.MessageBoxW(None, str(msg), str(info), 0)
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return 0
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os.MessageBox = MessageBox
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#sys.stdout=sys.stderr
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sys.path.insert(0, './LunaTranslator')
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)"
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#ifndef PYSTAND_CONSOLE
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LR"(
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try:
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fd = os.open('CONOUT$', os.O_RDWR | os.O_BINARY)
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fp = os.fdopen(fd, 'w')
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sys.stdout = fp
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sys.stderr = fp
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attached = True
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except Exception as e:
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try:
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fp = open(os.devnull, 'w', errors='ignore') # sometimes FileNotFound Error: [Errno 2]No such file or directory: 'nul'
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sys.stdout = fp
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sys.stderr = fp
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attached = False
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except:
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pass
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)"
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#endif
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LR"(
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sys.argv = [PYSTAND_SCRIPT] + sys.argv[1:]
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text = open(PYSTAND_SCRIPT, 'rb').read()
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environ = {'__file__': PYSTAND_SCRIPT, '__name__': '__main__'}
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environ['__package__'] = None
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)"
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#ifndef PYSTAND_CONSOLE
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LR"(
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try:
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code = compile(text, PYSTAND_SCRIPT, 'exec')
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exec(code, environ)
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except Exception:
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if attached:
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raise
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import traceback, io
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sio = io.StringIO()
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traceback.print_exc(file = sio)
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os.MessageBox(sio.getvalue(), 'Error')
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)"
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#else
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LR"(
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code = compile(text, PYSTAND_SCRIPT, 'exec')
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exec(code, environ)
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)"
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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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int main()
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{
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{
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// 当更新进行时，禁止启动
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AutoHandle hMutex = CreateMutex(NULL, FALSE, L"LUNA_UPDATER_SINGLE");
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if (GetLastError() == ERROR_ALREADY_EXISTS)
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return 0;
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}
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auto __handle = AutoHandle(CreateMutexA(&allAccess, FALSE, "LUNA_UPDATER_BLOCK"));
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PyStand ps(L"files\\runtime");
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if (ps.DetectScript() != 0)
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{
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return 3;
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}
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#ifndef PYSTAND_CONSOLE
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// winmain下的stderr没有任何卵用，对于崩溃时的stderr根本显示不出来，所以还是用控制台来保存log吧。
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if (AttachConsole(ATTACH_PARENT_PROCESS))
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{
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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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{
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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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{
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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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#else
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SetConsoleOutputCP(CP_UTF8);
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/*
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auto getCurrentTimestamp = []
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{
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auto now = std::chrono::system_clock::now();
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std::time_t now_time_t = std::chrono::system_clock::to_time_t(now);
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std::tm now_tm = *std::localtime(&now_time_t);
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std::ostringstream oss;
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oss << std::put_time(&now_tm, "log_%Y-%m-%d-%H-%M-%S.txt");
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return oss.str();
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};
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auto curr = getCurrentTimestamp();
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freopen(curr.c_str(), "a", stderr);
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*/
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#endif
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int hr = ps.RunString(init_script);
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return hr;
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}
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int WINAPI
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WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, LPSTR args, int show)
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{
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return main();
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} |